NASA researchers will present new findings on a wide range of astrophysics and other space science topics at the 235th Meeting of the American Astronomical Society, Saturday, Jan. 4, through Wednesday, Jan. 8, in Honolulu. NASA-related briefings will stream live on the agency’s website.
A revised version of David Bowie’s Space Oddity, recorded by Commander Chris Hadfield on board the International Space Station.
Meet your instructor: Chris Hadfield, retired astronaut and former Commander of the International Space Station. In his first lesson, Chris reflects on overcoming the impossible to explore outer space.
02 Astronaut Training
To become an astronaut, you have to become an expert on everything. Chris outlines the scope of an astronaut’s training from leadership skills to survival skills.
SpaceX Dragon was launched by Falcon 9 rocket from Cape Canaveral on December 5. The spacecraft will deliver to the ISS some 2.5 tonnes of cargo, including 998 kg for a series of 38 scientific experiments.
Pimentel´s evidence was from an infrared spectrometer, designed to detect elements by measuring their radiation.
„We’re struggling to explain this,“ said Melissa Trainer, study author and planetary scientist at NASA’s Goddard Space Flight Center. „The fact that the oxygen behavior isn’t perfectly repeatable every season makes us think that it’s not an issue that has to do with atmospheric dynamics. It has to be some chemical source and sink (of elements into the soil) that we can’t yet account for.“
It relates back to the methane mystery.
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.
• What and Why
•Ions and Particle Accelerators
•Classical vs Relativistic Dynamics
•Helical Engine Architecture
•A Specific Design Example
•Conservation of Momentum
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.
Pimentel´s evidence was from an infrared spectrometer, designed to detect elements by measuring their radiation.
The ﬁrst discovery of methane on Mars was announced in 1969 at a press conference by the Mariner 7 Infrared Spectrometer (IRS) team just two days after the ﬂyby.
The Ion and Neutral Mass Spectrometer saw a much higher density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected. This dramatic increase in density was evident as the spacecraft flew over the area of the plumes.
Previous analyses inferred three different spectral types of Enceladean ice grains (Postberg et al. 2008, 2009a): Type 1 represents grains of almost pure water ice, Type 2 shows features consistent with grains containing significant amounts of organic material, and Type 3 is indicative of salt-rich water ice grains.
Before NASA’s Cassini mission studied Saturn and its moons for 13 years, beginning in 2004, Enceladus held many secrets. Cassini revealed that there was a global ocean between the moon’s icy crust and its rocky core.
Although the Cassini mission ended in a blaze of glory when it disintegrated in Saturn’s atmosphere, surprises from the data it collected will be released for years to come.
A mysterious explosion on Thursday at an Iranian space center prompted speculation that it was American sabotage, rather than an accident, that was responsible for the third successive failure of Tehran’s efforts to show it could loft satellites into orbit.
As pictures from commercial satellites of a rocket’s smoking remains began to circulate, President Trump denied Friday on Twitter that the United States was involved.
They discovered that Neptune’s magnetic field was tipped on its side. They found a giant spot called the Great Dark Spot on the planet, similar to Jupiter’s Great Red Spot. But the event was passing, because it was no longer there when the Hubble Space Telescope looked four years later.
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.
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.
NASA will open the International Space Station to tourists from 2020.
The US space agency said it would open the orbiting lab up to new commercial opportunities including space tourism from next year, it was announced today.
This video and audio illustrates a seismic event detected by NASA’s InSight on April 6, 2019, the 128th Martian day, or sol, of the mission. Three distinct kinds of sounds can be heard, all of them detected as ground vibrations by the spacecraft’s seismometer, called the Seismic Experiment for Interior Structure (SEIS): There’s noise from Martian wind; the seismic event itself; and the spacecraft’s robotic arm as it moves to take pictures.
(17. Juli 2009) After a three-year search for a set of data tapes that promised to offer an improved view of the first moonwalk by Neil Armstrong and Buzz Aldrin 40 years ago this month, NASA revealed on Thursday that the tapes were more than likely erased years ago and reused. But the agency then unveiled the next best thing: restored footage based on their best broadcast quality tapes.
(16. Juli 2009) The good news is he found where they went. The bad news is they were part of a batch of 200,000 tapes that were degaussed — magnetically erased — and re-used to save money.
(28. Juni 2009) The Sunday Express can now reveal that the missing tapes containing the original high quality images have been found.
If the visual data can be retrieved, Nasa is set to reveal them to the world as a key plank of celebrations to mark the 40th anniversary of the landings next month.
The tapes show in much more detail than almost anyone has previously seen the surface of the moon beneath the patriotic symbol of the US flag.
Crucially, they could once and for all dispel 40 years of wild conspiracy theories.
(5. August 2005) THE heart-stopping moments when Neil Armstrong took his first tentative steps onto another world are defining images of the 20th century: grainy, fuzzy, unforgettable.
But just 37 years after Apollo 11, it is feared the magnetic tapes that recorded the first moon walk – beamed to the world via three tracking stations, including Parkes’s famous „Dish“ – have gone missing at NASA’s Goddard Space Centre in Maryland.
A desperate search has begun amid concerns the tapes will disintegrate to dust before they can be found.
(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.
(21.8.2018) As that statement indicates, scientists already knew that the lunar underground isn’t bone-dry. For example, in 2009, an impactor released by NASA’s Lunar Crater Observation and Sensing Satellite (LCROSS) blasted a bunch of water into space after slamming into a permanently shadowed region of Cabeus Crater, which lies near the moon’s south pole.
But it wasn’t clear from the LCROSS data where, exactly, that excavated ice originally lay — how much gray dirt once sat atop it. And, while several instruments have spotted tantalizing hints of exposed lunar ice over the years, these detections had remained unconfirmed until now.
This rock was formed between 4 and 4.1 billion years ago, about 12.4 miles beneath the Earth’s crust, yet the most curious thing about it that it was found far beyond our planet’s surface – on the Moon.
The rock was among the samples discovered by the Apollo 14 crew. The Apollo missions brought back a whole bunch of rock samples, and scientists have been methodically analyzing them ever since.
Scientists noticed a pressure leak on the ISS back on Aug. 29 of this year. They determined the source was a 2-millimeter hole in the Soyuz capsule and quickly filled it up with epoxy. NASA reported that the astronauts were never in any danger.
Since then, photos of the hole revealed that it looked an awful lot like a drill hole. Russian authorities intimated that it could have come from “deliberate spoilage,” but stopped short of making direct accusations.
(1.10.2018) These certainly mean more dollars headed toward research and development; while the original Apollo and other missions were government-funded and ultimately fell under the purview of the military (indeed, one of the primary stated goals of the Gemini and Apollo programs was to lessen the „Missile gap“ between the United States and the Soviet Union), this new concept relies heavily on private investment, corporate involvement and funding, and the eventual mining and financial rewards of „exploration and use“ of the lunar and Mars surfaces.
(11.10.2018) Russia grounded all space flights after a Soyuz rocket failure Thursday, putting the International Space Station at risk and adding pressure on Boeing (BA) and SpaceX to get their rockets ready for NASA service.
(16.10.2018) One of the cornerstones of the current space policy is to somehow „privatize“ or „commercialize“ the ISS by 2024-2025 and to use the „savings“ from that privatization to help fund the program. The idea of operating the ISS profitably is so preposterous that I don’t feel a need to comment further here. Besides, from where is the funding to come before 2024-2025?
What this look back shows is consistently poor policy decisions going back at least 14 years. What will happen to NASA and U.S. spaceflight in the coming years?
(9.6.2018) Since taking office as NASA’s administrator in April, Jim Bridenstine (previously a member of Congress from Oklahoma with no scientific background) has pushed this scheme, most recently in an interview this week with the Washington Post.
(5.6.2018) “We’re in a position now where there are people out there that can do commercial management of the International Space Station,” Bridenstine said in his first extensive interview since being sworn in as NASA administrator in April. “I’ve talked to many large corporations that are interested in getting involved in that through a consortium, if you will.”
ESA astronaut Claudie Haigneré attended the Paris Peace Forum this weekend, presenting the Agency’s vision for engaging humankind in multilateral cooperation for space exploration with peaceful objectives.
(6.6.2018) The EU has clashed with the head of the independent European Space Agency (ESA) over the bloc’s plans to take greater control over the continent’s space programmes, in a move that could cut the UK out of key decisions.