Archiv: National Aeronautics and Space Administration (NASA)


05.06.2026 - 22:22 [ Tagesschau.de ]

Internationale Raumstation: ISS-Besatzung muss vorübergehend Schutz suchen

Roskosmos teilte mit, dass ihre Experten zwei Lecks an Bord der Internationalen Raumstation entdeckt hätten, für die Besatzung jedoch keine unmittelbare Gefahr bestehe. Das erste Leck sei rasch abgedichtet worden, und derzeit liefen die Vorbereitungen zur Abdichtung des zweiten. „Die Sicherheit der Besatzung und der Bordsysteme ist nicht gefährdet, der Druck an Bord der ISS ist stabil und wird auf dem vorgesehenen Niveau gehalten.“

Die NASA und Roskosmos – die beiden Hauptbetreiber der Station – streiten seit Monaten über die Ursache und mögliche Reparaturmaßnahmen für kleine Luftlecks im Servicemodul Swesda.

05.06.2026 - 21:59 [ Space.com ]

Astronauts on International Space Station take shelter in SpaceX Dragon as cosmonauts try to fix air leak

The four astronauts of SpaceX‘s Crew-12 mission are NASA‘s Jessica Meir and Jack Hathaway, Sophie Adenot of the European Space Agency and cosmonaut Andrey Fedyaev. They arrived at the International Space Station (ISS) in mid-February for a six-month stay.

They took shelter today in Crew-12‘s Dragon capsule „Freedom,“ along with NASA‘s Williams, who arrived at the station in late November aboard a Russian Soyuz spacecraft.

Williams flew with two crewmates on that Soyuz — cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev. They‘re presumably the ones who attempted the PrK leak fix today. (Stevens‘ X post did not mention who performed the repair or what exactly the operation entailed.)

05.06.2026 - 21:50 [ Associated Press ]

Astronauts briefly take shelter during repair to fix leak on the International Space Station

NASA on Friday temporarily ordered astronauts to take shelter during repairs to fix a fresh leak aboard the International Space Station.

The five astronauts moved into the SpaceX capsule that is docked at the station while cosmonauts worked to fix the leak, which is on the Russian side of the orbiting laboratory.

13.02.2026 - 07:08 [ National Aeronautics and Space Administration ]

NASA’s IMAP Begins Primary Science Mission

(February 2, 2026)

NASA’s IMAP (Interstellar Mapping and Acceleration Probe) began its two-year primary science mission on Feb. 1 to explore and map the boundaries of our heliosphere — the protective bubble created by the solar wind that encapsulates our solar system.

The mission, which launched on Sept. 24, 2025, relies on 10 scientific instruments to chart a comprehensive picture of what’s roiling in space, from high-energy particles originating at the Sun, to magnetic fields in interplanetary space, to dust left from exploded stars in interstellar space.

13.02.2026 - 06:58 [ CBS News ]

NASA begins mission to map the boundaries of our heliosphere

(February 3, 2026)

A NASA probe has started its mission to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun, the space agency announced on Monday.

The space agency‘s Interstellar Mapping and Acceleration Probe, or IMAP, is expected to continue its mission for two years, using scientific instruments to chart the boundaries of the heliosphere and what‘s going on inside of it.

The probe is focusing on high-energy particles bursting from the surface of the sun, the magnetic fields that form in the spaces between planets, and the dust left behind by collapsed stars farther out in the galaxy.

13.02.2026 - 05:54 [ European Space Agency, ESA / Youtube ]

The Ulysses Legacy: Observing the Sun for 17 years

Sep 3, 2008
The ESA/NASA Ulysses mission has made fundamental contributions to our understanding of the Sun and our local interstellar neighbourhood. Ulysses was designed to last for five years but the mission was extended four times, allowing Ulysses to pass over the Sun‘s poles for a second and third time, and spending more than 18 years in space.

13.02.2026 - 04:03 [ NASA / Youtube ]

Voyager 1 Trajectory through the Solar System

Aug 31, 2017

This visualization tracks the trajectory of the Voyager 1 spacecraft through the solar system. Launched on September 5, 1977, it was one of two spacecraft sent to visit the giant planets of the outer solar system. Voyager 1 flew by Jupiter and Saturn before being directed out of the solar system.

To fit the 40 year history of the mission into a short visualization, the pacing of time accelerates through most of the movie, starting at about 5 days per second at the beginning and speeding up to about 11 months per second after the planet flybys are past.

The termination shock and heliopause are the ‚boundaries‘ created when the plasma between the stars interacts with the plasma flowing outward from the Sun.

13.02.2026 - 03:57 [ National Aeronautics and Space Administration ]

Animation: Heliosphere

(March 9, 2022)

This complex environment surrounds the planets and ultimately has a crucial effect on the formation, evolution, and destiny of planetary systems. For one thing, our heliosphere acts as a giant shield, protecting the planets from galactic cosmic radiation. Earth is additionally shielded by its own magnetic field, the magnetosphere, which protects us not only from solar and cosmic particle radiation but also from erosion of the atmosphere by the solar wind. Planets without a shielding magnetic field, such as Mars and Venus, are exposed to such processes and have evolved differently.

NASA‘s studies of the heliosphere include research into: how the solar wind behaves near Earth; what causes and sustains magnetic and electric fields around other planets; how does the heliosphere interact with the interstellar medium; what do the boundaries of the heliosphere look like; what is the origin and evolution of the solar wind and the interstellar cosmic rays; and what contributes to the habitability of exoplanets.

13.02.2026 - 01:18 [ National Aeronautics and Space Administration ]

Ocean Tides and Magnetic Fields

(December 30, 2016)

Earth’s magnetic field is built up from many contributing sources ranging from the planet’s core to the magnetosphere in space. Untangling and identifying the different sources allows geomagnetic scientists to gather information about the individual processes that combine to create the full field.

One contributor is the ocean. But how do the tides affect Earth’s magnetic field? Seawater is an electrical conductor, and therefore interacts with the magnetic field. As the tides cycle around the ocean basins, the ocean water essentially tries to pull the geomagnetic field lines along. Because the salty water is a good, but not great, conductor, the interaction is relatively weak. The strongest component is from the regular lunar tide that happens about twice per day (actually 12.42 hours).

25.12.2025 - 21:59 [ National Aeronautics and Space Administration ]

Mapping the Cosmic Web

This visualization of a computer simulation showcases the ‘cosmic web’, the large scale structure of the universe. Each bright knot is an entire galaxy, while the purple filaments show where material exists between the galaxies. To the human eye, only the galaxies would be visible, and this visualization allows us to see the strands of material connecting the galaxies and forming the cosmic web. This visualization is based on a scientific simulation of the growth of structure in the universe. The matter, dark matter, and dark energy in a region of the universe are followed from very early times of the universe through to the present day using the equations of gravity, hydrodynamics, and cosmology. The normal matter has been clipped to show only the densest regions, which are the galaxies, and is shown in white. The dark matter is shown in purple. The size of the simulation is a cube with a side length of 134 megaparsecs (437 million light-years). The camera choreography is a straight line path through the simulation. The camera accelerates from a standstill at the start, flies at a constant speed, and then decelerates to a stop at the end. The “cruising speed” of the camera is 250,000 parsecs per frame, or about 20 million light-years per second (at 24 frames per second). That’s more than 600 trillion times the speed of light. Buckle your seatbelts.

13.11.2025 - 16:14 [ NASA Goddard / Youtube ]

11 Years Charting Edge of Solar System

Jun 11, 2020
Far, far beyond the orbits of the planets lie the hazy outlines of the magnetic bubble in space that we call home.

This is the heliosphere, the vast bubble that is generated by the Sun’s magnetic field and envelops all the planets. The borders of this cosmic bubble are not fixed. In response to the Sun’s gasps and sighs, they shrink and stretch over the years.

Now, for the first time, scientists have used an entire solar cycle of data from NASA’s IBEX spacecraft to study how the heliosphere changes over time. Solar cycles last roughly 11 years, as the Sun swings from seasons of high to low activity, and back to high again. With IBEX’s long record, scientists were eager to examine how the Sun’s mood swings play out at the edge of the heliosphere. The results show the shifting outer heliosphere in great detail, deftly sketch the heliosphere’s shape — a matter of debate in recent years, and hint at processes behind one of its most puzzling features. These findings, along with a newly fine-tuned data set, are published in The Astrophysical Journal Supplements on June 10, 2020.

13.11.2025 - 14:00 [ Dagens.com ]

NASA confirms Voyager spacecraft has encountered a “wall of fire” at the edge of the Solar System

(November 6, 2025)

According to NASA, Voyager 1 has now encountered what researchers describe as a “wall of fire,” a zone where temperatures reach between 30,000 and 50,000 kelvin — roughly 30,000 degrees Celsius. The finding was made as part of ongoing efforts to understand the boundary separating our Solar System from interstellar space.

(…)

“An observation made by Voyager 2 confirms a surprising result from Voyager 1: the magnetic field in the region just beyond the heliopause is parallel to the magnetic field inside the heliosphere,” NASA noted. With data from both spacecraft, scientists can now confirm that this alignment is not a coincidence but a defining characteristic of the boundary region.

13.11.2025 - 13:38 [ NASA / Youtube ]

Voyager 1 Trajectory through the Solar System

628,218 views Aug 31, 2017
This visualization tracks the trajectory of the Voyager 1 spacecraft through the solar system. Launched on September 5, 1977, it was one of two spacecraft sent to visit the giant planets of the outer solar system. Voyager 1 flew by Jupiter and Saturn before being directed out of the solar system.

To fit the 40 year history of the mission into a short visualization, the pacing of time accelerates through most of the movie, starting at about 5 days per second at the beginning and speeding up to about 11 months per second after the planet flybys are past.

The termination shock and heliopause are the ‚boundaries‘ created when the plasma between the stars interacts with the plasma flowing outward from the Sun.

13.11.2025 - 13:31 [ LeRavi.org ]

NASA’s Voyager 1 set to become first human-made object to reach a full light-day distance from Earth in 2026

Launched in 1977, Voyager 1 has been cruising through space for nearly 47 years, traveling a mind-boggling distance of almost 16 billion miles from Earth. This journey has already broken records—it was the first spacecraft to cross the heliopause, the boundary where the Sun’s solar wind yields to interstellar space. Now, it is on course to reach a distance known as a light-day, meaning the distance that light travels in 24 hours.

Traveling at about 38,000 miles per hour, Voyager 1’s progress may seem slow compared to light speed, but it reveals the vast scales of cosmic distance. Radio signals sent from the spacecraft take nearly 23 hours to reach Earth, which offers a glimpse into the immense challenges of communicating across these astronomical expanses.

02.03.2025 - 05:03 [ Jet Propulsion Laboratory / National Aeronautics and Space Administration ]

The Voyagers Are Still Exploring 40 Years Later

(Oct. 12, 2024)

From their unique vantage points – Voyager 1 in the northern hemisphere and Voyager 2 in the southern hemisphere – the spacecraft have already detected differences and asymmetries in the solar wind termination shock, where the wind abruptly slows as it approaches the heliopause. For example, Voyager 2 crossed the termination shock at a distance of about 83.7 AU in the southern hemisphere. (One AU, or astronomical unit, is equal to 150 (million) kilometers (93 million miles), the distance between Earth and the Sun.) That’s about 10 AU closer to the Sun than where Voyager 1 crossed the shock in the north. As shown in this diagram, Voyager 1 traveled through the compressed “nose” of the termination shock and Voyager 2 is expected to travel through the flank of the termination shock.

02.03.2025 - 04:53 [ NASA / Youtube ]

Voyager 1 Trajectory through the Solar System

628,218 views Aug 31, 2017
This visualization tracks the trajectory of the Voyager 1 spacecraft through the solar system. Launched on September 5, 1977, it was one of two spacecraft sent to visit the giant planets of the outer solar system. Voyager 1 flew by Jupiter and Saturn before being directed out of the solar system.

To fit the 40 year history of the mission into a short visualization, the pacing of time accelerates through most of the movie, starting at about 5 days per second at the beginning and speeding up to about 11 months per second after the planet flybys are past.

The termination shock and heliopause are the ‚boundaries‘ created when the plasma between the stars interacts with the plasma flowing outward from the Sun.

02.03.2025 - 04:41 [ Wired.me ]

Our planet is in a space balloon, literally

(June 16, 2024)

But only two human-made objects have crossed the boundary of the solar system and entered interstellar space.

In 1977, NASA launched Voyager 1 and Voyager 2, equipped with tools to measure the magnetic fields and the particles it is directly passing through. After traveling for over three decades in space, they finally exited the outer layer of the heliosphere—heliopause in 2012 and 2018 respectively. They discovered that cosmic rays are about three times more intense outside the heliopause than deep inside the heliosphere.

02.03.2025 - 04:27 [ National Aeronautics and Space Administration ]

PUNCH – Polarimeter to Unify the Corona and Heliosphere

Key Questions

The PUNCH mission will use four suitcase-sized satellites to observe the Sun and its environment. Working together, the four PUNCH satellites will create a combined field of view and map the region where the Sun’s corona (or outer atmosphere) transitions to the solar wind (the constant outflow of material from the Sun).

The PUNCH mission will answer questions about:

How the Sun’s atmosphere transitions to the solar wind.
How structures in the solar wind are created.
How these processes affect the solar system.

02.03.2025 - 04:24 [ Astrnomy.com ]

NASA will soon launch PUNCH to study how the Sun influences the space around us

On March 2, a SpaceX Falcon 9 rocket is scheduled to launch the Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission into low Earth orbit. From this location, its four satellites will have nearly constant views of the Sun to help researchers answer questions about how activity near our star propagates through the inner solar system, influencing the space weather we experience here on Earth.

26.02.2025 - 02:59 [ Jean-Jacques Dordain and Michael D. Griffin / spacenews.com ]

Transferring the International Space Station into the future

(July 1, 2024)

The International Space Station is the largest, most complex and most important element of space infrastructure yet deployed, and one of the most incredible engineering accomplishments in human history. It is the result of an international, diplomatic initiative reconciling in space the Western world and the Eastern world by combining the two space stations until then planned separately by each side – Space Station Freedom and Mir 2 – involving five major partners, the United States, Europe, Japan, Canada and Russia.
(…)
For example, to move the ISS from its present 400-kilometer altitude to an 800-kilometer altitude circular orbit requires a boost of about 220 meters per second, about the same as required for precise deorbit control. At the higher altitude, the orbital lifetime would be many decades, providing ample time for future generations to take their own decisions and actions.
(…)
We are not in charge anymore, but our question to the current generation is: since the boost stage must be built anyway, would it not be better to use that stage to place the ISS in a higher orbit for the possible use of a future generation than to destroy it upon reentry?

26.02.2025 - 02:28 [ Yahoo ]

Former Space Agency Leaders Horrified by Plan to Destroy Space Station, Say It Would Be Easier to Save It

(July 16, 2024)

Jean-Jacques Dordain, who was the director general of the European Space Agency when the station was being built, and former NASA administrator Michael Griffin say its life should be extended instead, giving future scientists a chance to continue studying outer space.
(…)
„At the higher altitude, the orbital lifetime would be many decades, providing ample time for future generations to take their own decisions and actions,“ the letter reads.

26.02.2025 - 01:32 [ Phys.org ]

Elon Musk calls for deorbit of International Space Station as soon as possible

(February 22, 2025)

Elon Musk‘s latest space-related hammer throw is to call for it to be deorbited as soon as two years from now. In posts to X, Musk said, „It is time to begin preparations for deorbiting the (space station). It has served its purpose.

26.02.2025 - 00:36 [ Daniel Neun / Radio Utopie ]

Unser System: Das Ende der zivilen Europäischen Weltraumfahrt

(July 21, 2008)

DIE ISS: KALT SABOTIERT UND IN DER SACKGASSE

NASA-Chef Michael Griffin hat selbst die Entwicklung des „Space Shuttle“ und der Internationalen Raumstation ISS als „einen Fehler“ („a mistake“) bezeichnet. Erst nach verblüfften Protesten aus der Wissenschaft zog er halbherzig zurück. Aber mehr und mehr fragen sich die Beobachter aus Wissenschaft und Weltöffentlichkeit, ob man es mit einem neuen „Wettrennen im Weltraum“ zu tun hat, welches eher militärisch motiviert ist.

An ISS und Space Shuttle (siehe Screenshot, aus einem Bild der ESA) wird kritisiert, dass sie keinen „Gewinn“ abwerfen. Auf den ersten Blick einfach grosser Quatsch. Auf den zweiten skrupelloses Kalkül. Man will die zivilen Projekte einfach loswerden und denkt sich eine entsprechend dumme Luftblase aus, um diese dann testweise in die Öffentlichkeit zu setzen, dann entweder bei entsprechendem Geschrei zurückzuziehen und wegzuheucheln oder einfach immer weiter mit dem Abbau der zivilen Wissenschaft zu machen bis alles zerstört, runiert und endlich verloren ist.

Einfacher Hintergedanke: wenn man einen Krieg führen will, braucht man einen Feind, keinen Mitmenschen auf irgendeinem Planeten mit dem man dies und das gemeinsam hat. Das verwirrt nur die blöde Hammelherde die man an die Front quatschen will.

Die ISS, obgleich nicht mal fertiggebaut, steht ab 2010 ohne Versorgungsfähre da, weil die NASA auch die Space Shuttles einmottet und seit den 70er Jahren, unter den 8 Jahren Ronald Reagan mit seinem Vize George Bush, dessen 4 Jahren als Präsident, 8 Jahren Bill Clinton und dann noch 8 Jahre George Bush Junior oben drauf, kein Nachfolgemodell entwickelt hat.

Den für 2015 in Aussicht gestellten US-Raumgleiter „Orion“ darf man nicht als schlechten Witz bezeichnen, man muss es. Er besteht nur auf dem Papier, ebenso wie die notwendige Trägerrakete Ares.
Beide Luftnummern sollen im Rahmen dieses wohlklingenden „Project Constellation“ angeblich aus uralten Komponenten des „Apollo“-Programms, ja sogar aus der steinzeitlichen Delta-IV Rakete (ausgerechnet von Boeing) zusammen gesetzt werden.

Deshalb müssen ab 2010 nun zur Versorgung der ISS die Russen einspringen – mit den uralten Kapseln der Sojus-Kapseln. Es ist zum Verzweifeln.
Und ab 2015, so drohte NASA-Chef Griffin indirekt, ist das Projekt ISS sowieso hinfällig.

Auch nicht die ESA, die kanadische oder die japanische Raumfahrtbehörde machen z.Z. irgendwelche Anstrengungen um die Zukunft der einzigen Raumstation der Menschheit im All zu retten.
Dabei werden dann wirre Pläne über Mond- und Marsmissionen in die Welt gesetzt die völlig irreal und nicht umzusetzen sind, weil bei immensen technischen und infrastrukturellen Problemen trotzdem alle gegeneinander arbeiten und vor einander warnen, besonders vor den Chinesen welche zwar auffällig zielstrebig und fleissig ihre Raumfahrt selbstständig ausbauen, aber gerade mal ihren ersten Taikonauten ins All gebracht haben und noch mindestens 10 Jahre hinter dem Stand der Russen und Amerikaner sind.

Und die Franzosen? Sie hatten schon Mitte der 70er Jahre die Pläne für den Raumgleiter „Hermes“ in der Schublade, die natürlich konsequent nicht umgesetzt wurden.
1987 wurde dann endlich der erste Schritt getan, um das ganze Programm dann 6 Jahre später wieder einzustellen, ausgerechnet mit der Explosion der Challenger-Raumfähre als Begründung, die bereits 1986 erfolgt worden war.
Einerseits müsse man jetzt wohl doch Schleudersitze einbauen (was für ein Witz), deswegen könne man weniger Astronauten und Fracht mitnehmen, ausserdem habe man kein Geld und ausserdem brauche man eh keine Raumfähre.

Jetzt von einer Mondfahrt, oder gar einer Reise zum Mars zu erzählen, ist irrational und unwissenschaftlich. Letzteres ist mit normalen Verbrennungstechniken bzw. chemischen Triebwerken sowieso nicht zu schaffen, und der Ionenantrieb, dessen erste Entwürfe vom deutschen Hermann Oberth aus den 20er Jahren stammen, dümpelt leise vor sich hin. Funktionieren tut er nur im Vakuum, nicht in der Atmosphäre. Starten könnte man nur von einer Raumwerft, deren Anfang wäre erst einmal eine orbitale Station, die aber wird gerade versenkt, usw.

Man erzählt das Eine und macht genau das Andere.
Das ist keine Wissenschaft. Das ist Politik.

26.02.2025 - 00:21 [ Tagesschau.de ]

Raumfahrt: Musk, die ISS und die gestrandeten Astronauten

(February 22, 2025)

Der ehemalige Astronaut Ulrich Walter bringt einen weiteren Player ins Spiel: „Die Inder haben auch ein bemanntes Raumfahrtprogramm, und falls die USA als Partner wegfallen, würde ich eine langfristige Zusammenarbeit mit den Indern empfehlen.“

Klar ist: Auf unabsehbare Zeit hat Europa keine eigene Rakete und kein Raumschiff, um selbst Astronauten in den Weltraum zu bringen. Wenn früher als geplant auch noch die ISS wegfällt, könnte es für ESA-Astronauten düster aussehen.

31.01.2025 - 01:00 [ National Aeronautics and Space Administration ]

SPHEREx

About the mission

Launch date: Late February 2025

The Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) is a planned two-year mission that will survey the sky in optical as well as near-infrared light which, though not visible to the human eye, serves as a powerful tool for answering cosmic questions. Astronomers will use the mission to gather data on more than 450 million galaxies, as well as, more than 100 million stars in our own Milky Way.

31.01.2025 - 00:30 [ National Aeronautics and Space Administration ]

NASA to Preview Sky-Mapping Space Telescope Ahead of Launch

NASA will host a news conference at 12 p.m. EST Friday, Jan. 31, to discuss a new telescope that will improve our understanding of how the universe evolved and search for key ingredients for life in our galaxy.

Agency experts will preview NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) mission, which will help scientists better understand the structure of the universe, how galaxies form and evolve, and the origins and abundance of water. Launch is targeted for no earlier than Thursday, Feb. 27.