Archiv: spacecrafts


22.11.2019 - 20:08 [ CBS News ]

Spacewalkers press ahead with space station cosmic ray detector repair

The Alpha Magnetic Spectrometer was designed to detect high-energy cosmic rays in long-term research to learn what happened to the antimatter presumably cooked up in the big bang. It also is looking for clues about the nature of unseen dark matter and the equally mysterious dark energy that is speeding up the expansion of the universe.

04.11.2019 - 19:38 [ ScienceNews.org ]

Voyager 2 reveals the dynamic, complex nature of the solar system’s edge

Despite encountering the heliopause at different times and locations — the two spacecraft are farther from each other than each are from the sun — some things looked similar. The magnetic field looked pretty much the same on the inside and the outside of the boundary: Somehow, the sun’s magnetic field lines up nearly perfectly with the local galactic field, contrary to expectations. “We could dismiss that as coincidence in one case, but we can’t do that twice,” study coauthor Leonard Burlaga, of NASA’s Goddard Space Flight Center in Greenbelt, Md., said in the news conference.

04.11.2019 - 19:30 [ Nature ]

Energetic charged particle measurements from Voyager 2 at the heliopause and beyond

Here, we report measurements of energetic (>28 keV) charged particles on V2 from the interface region between the heliosheath, dominated by heated solar wind plasma, and the VLISM, expected to contain cold non-solar plasma and the Galactic magnetic field. The number of particles of solar origin began a gradual decrease on 7 August 2018 (118.2 au), while those of Galactic origin (Galactic cosmic rays) increased ~20% in number over a period of a few weeks. An abrupt change occurred on 5 November when V2 was located at 119 au, with a decrease in the number of particles at energies of >28 keV and a corresponding increase in the number of Galactic cosmic rays of energy E > 213 MeV. T

04.11.2019 - 19:19 [ theGuardian.com ]

Nasa’s Voyager 2 sends back its first signal from interstellar space

The shape depends, in a complex way, on the relative strengths of the magnetic fields inside and outside of the heliosphere, and the latest measurements are suggestive of a more spherical form.

16.10.2019 - 23:23 [ Newsweek.com ]

NASA Engineer Proposes ‚Helical Engine‘ For Interstellar Travel With No Propellant

Burns said his helical engine would work by accelerating ions confined in a loop. By changing their mass slightly, the engine would then move the ions back and forth along the direction of travel to produce thrust. New Scientist notes that the helical engine would need to be 650 feet long and 40 feet wide in order to work.

16.10.2019 - 23:20 [ Nasa.gov ]

Helical Engine

• What and Why
•Thought Experiment
•Ions and Particle Accelerators
•Classical vs Relativistic Dynamics
•Helical Engine Architecture
•A Specific Design Example
•Conservation of Momentum
•Conclusions

16.10.2019 - 23:14 [ NewScientist.com ]

NASA engineer’s ‚helical engine‘ may violate the laws of physics

This mass changing isn’t prohibited by physics. Einstein’s theory of special relativity says that objects gain mass as they are driven towards the speed of light, an effect that must be accounted for in particle accelerators. In fact, a simplistic implementation of Burns’s concept would be to replace the ring with a circular particle accelerator, in which ions are swiftly accelerated to relativistic speed during one stroke, and decelerated during the other.

But Burns thinks it would make more sense to ditch the box and rod and employ the particle accelerator for the lateral as well as the circular movement – in which case, the accelerator would need to be shaped like a helix.

24.08.2019 - 12:34 [ SpaceNews.com ]

Administration policies seek to promote use of space nuclear power

A revised policy for approving the launch of spacecraft with nuclear power systems is the latest measure intended to support greater use of nuclear power systems in orbit and beyond.

The policy, formally issued by President Trump Aug. 20 to coincide with the latest public meeting of the National Space Council, updates guidelines for how both government and commercial spacecraft carrying space nuclear systems are reviewed and approved for launch.

24.08.2019 - 12:32 [ Weißes Haus ]

Presidential Memorandum on Launch of Spacecraft Containing Space Nuclear Systems

This memorandum establishes processes for Federal Government launches and launches for which the Department of Transportation (DOT) has statutory authority to license as commercial space launch activities (commercial launches). These processes include transparent safety guidelines and are forward-looking and amenable to effective use of space nuclear systems for heating, power, and propulsion.

11.08.2019 - 10:25 [ National Aeronautics and Space Administration ]

What Does a Marsquake Look Like?

(22.07.2019)

Provided by the French space agency, Centre National d’Études Spatiales (CNES), the seismometer detected its first marsquake on April 6, 2019. The InSight mission’s Marsquake Service, which monitors the data from SEIS, is led by Swiss research university ETH Zurich.

11.08.2019 - 09:51 [ National Aeronautics and Space Administration ]

NASA’s InSight Detects First Likely ‚Quake‘ on Mars

(23.04.2019)

The faint seismic signal, detected by the lander’s Seismic Experiment for Interior Structure (SEIS) instrument, was recorded on April 6, the lander’s 128th Martian day, or sol. This is the first recorded trembling that appears to have come from inside the planet, as opposed to being caused by forces above the surface, such as wind. Scientists still are examining the data to determine the exact cause of the signal.

02.08.2019 - 02:09 [ CNN ]

Bill Nye’s experimental spacecraft that sails on sunlight declares mission success

The Planetary Society spent a decade working up to the LightSail 2 mission and scraping together the $7 million needed to get the project off the ground. All told, 50,000 supporters from 109 countries donated to the initiative, according to Planetary Society COO Jennifer Vaughn.

25.05.2019 - 15:09 [ NationalGeographic.com ]

Surprise: Solar System „Force Field“ Shrinks Fast

(01.10.2010)

„If we’ve learned anything from IBEX so far, it is that the models that we’re using for interaction of the solar wind with the galaxy were just dead wrong,“ David McComas, principal investigator for the IBEX program, said during a NASA press conference Thursday.

For starters, it’s been assumed that the heliosphere’s expansion and contraction follows the sun’s roughly 11-year activity cycle, during which the flow rate of charged particles, or solar wind, fluctuates.

25.05.2019 - 14:49 [ voyager.jpl.nasa.gov ]

NASA Voyager 2 Could Be Nearing Interstellar Space

(05.10.2018)

NASA’s Voyager 2 probe, currently on a journey toward interstellar space, has detected an increase in cosmic rays that originate outside our solar system.

25.05.2019 - 14:49 [ scitechdaily.com ]

NASA Voyager 2 Nearing Interstellar Space, Measures Increase in Cosmic Rays

(06.10.2018)

NASA’s Voyager 2 probe, currently on a journey toward interstellar space, has detected an increase in cosmic rays that originate outside our solar system.

27.01.2019 - 11:27 [ theGuardian.com ]

India’s first lunar mission finds water on moon: Two other studies back findings from Chandrayaan-1

(24. September 2009) The man who led the mission, Dr Mylswamy Annadurai, told the Times today how pleased he was at the discovery, which significantly enhances India’s position in its space race with China.

„It’s very satisfying,“ he said. „This was one of the main objectives of Chandrayaan-1, to find evidence of water on the moon.“

The reports from the Indian mission were backed up by the findings of two other studies to be published in the journal Science on Friday, showing that the water may be actively moving around, forming and reforming as particles mixed up in the dust on the surface of the moon.

11.10.2018 - 17:23 [ Ruptly / Youtube ]

*REFEED* Roscomos shows Soyuz MS-10 crew arriving in Baikonur

NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksey Ovchinin were on board the spacecraft, which was scheduled to dock to the International Space Station (ISS) later in the day.

11.10.2018 - 17:11 [ SciNews / Youtube ]

#SoyuzMS10: Soyuz MS-10 launch failure

A Soyuz-FG rocket launched the Soyuz MS-10 spacecraft with International Space Station Expedition 57-58 crew members, NASA astronaut Nick Hague and Roscosmos cosmonaut Alexey Ovchinin, from the Baikonur Cosmodrome in Kazakhstan, on 11 October 2018, at 08:40 UTC (14:40 local time). Due to a booster error, the spacecraft entered a ballistic descend and the crew landed in Kazakhstan. Credits: NASA/Roscosmos

08.10.2018 - 21:05 [ V3.co.uk ]

NASA’s Voyager 2 probe detects increase in cosmic rays as it approaches the heliosphere

Cosmic rays are fast-moving particles that originate outside the solar system. Some of these cosmic rays are blocked by the heliosphere, so mission planners expect that Voyager 2 will measure an increase in the rate of cosmic rays as it approaches and crosses the boundary of the heliosphere.

08.10.2018 - 21:01 [ Outerplaces.com ]

NASA’s Voyager 2 Probe Is About To Slip Beyond The Boundaries Of Our Solar System And Into Interstellar Space

Voyager 2 began it’s journey away from Earth back in 1977 and is roughly 11 billion miles from home. In 2007 it entered the outermost layer of the heliosphere, and now based on data recorded by the probe’s Cosmic Ray Subsystem instrument, NASA scientists say there’s a good chance that it is about to reach the boundary (known as the heliopause) and join Voyager 1 in the history books as the second human-made object to go interstellar. Back in August, the cosmic rays hitting the probe increased by five percent.

05.10.2018 - 01:50 [ Trend.az ]

NASA signs deal with Israel Space Agency for lunar mission

“I’m thrilled to extend progress in commercial cooperation we’ve made in low-Earth orbit to the lunar environment with this new agreement with the Israel Space Agency and SpaceIL,” NASA administrator Jim Bridenstine said. “Innovative partnerships like this are going to be essential as we go forward to the Moon and create new opportunities there.”

05.05.2018 - 17:37 [ Daniel Neun / Twitter ]

@NASANewHorizons: All between that, @ExpanseSYFY and 17 years of worldwide war on error (at present just on this small planet), could you guys stop that subliminal „Weltraum macht frei“ messages and think for a second next time before you name a space object? Thanks a lot @NASA.

05.05.2018 - 15:25 [ NASA ]

Mars Cube One Demo

All previous CubeSats have orbited the Earth. MarCO is the first attempt to go to another planet. By verifying that the technologies for interplanetary missions are feasible and can be developed on a short timeline, this test mission could lead to many other SmallSat applications for exploring our solar system. Some could provide similar support functions as „carry your own“ relay providers. Others could have primary scientific research functions of their own, such as radio transmissions through planetary atmospheres, imaging with small cameras, observations with other miniaturized instruments, or in-place measurements of space environments.

05.05.2018 - 15:15 [ NASAKennedy / Youtube ]

Liftoff of InSight

A United Launch Alliance Atlas V rocket lifts off at 4:05 a.m. PDT (7:05 a.m. EDT) from Space Launch Complex 3 at Vandenberg Air Force Base in California carrying NASA’s Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, or InSight, Mars lander. InSight will be the first mission to look deep beneath the Martian surface. It will study the planet’s interior by measuring its heat output and listen for marsquakes.

05.05.2018 - 15:12 [ PBS NewsHour / Youtube ]

WATCH LIVE: NASA launches InSight Lander to Mars

InSight, which stands for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, will be the first lander or rover bound for Mars since Curiosity launched in 2011. It will also be the first to dig deep into the planet’s interior in an effort to understand how the planet’s geology evolved over billions of years. The probe will scan for seismic activity, keeping tabs on the planet’s so-called “marsquakes.”