Notícies d'astronomia

NASA's Mars helicopter makes second flight (anglès) - Dv, 23/04/2021 - 01:31
Washington (AFP) April 22, 2021
NASA successfully carried out a second flight on Mars on Thursday of its mini helicopter Ingenuity, a 52-second sortie that saw it climb to a height of 16 feet (five meters). "So far, the engineering telemetry we have received and analyzed tell us that the flight met expectations," said Bob Balaram, Ingenuity's chief engineer at NASA's Jet Propulsion Laboratory in southern California. "W

How a space doctor keeps astronauts healthy on the ISS (anglès) - Dv, 23/04/2021 - 01:31
Kennedy Space Center, United States (AFP) April 22, 2021
From muscle loss to radiation exposure and the psychological effects of confinement, spaceflight takes a toll on those lucky enough to experience it. European Space Agency flight surgeon Adrianos Golemis, who is responsible for the health of astronaut Thomas Pesquet during the SpaceX Crew-2 mission, shared some insights on the field of space medicine. Q: What are the major health challe

MOXIE creates oxygen on Mars (anglès) - Dv, 23/04/2021 - 01:31
Boston MA (SPX) Apr 22, 2021
NASA's Perseverance rover has been marking milestones on Mars since landing on the Red Planet in February. Its latest historic accomplishment is the first creation of oxygen from carbon dioxide in the thin Mars atmosphere. Mission time is measured in sols, or Martian days. Oxygen production was achieved early in the evening of April 20, or early morning on Sol 60 in Jezero Crater. MOXIE (M

SpaceX flight to ISS postponed by one day due to weather (anglès) - Dv, 23/04/2021 - 01:31
Kennedy Space Center, United States (AFP) April 21, 2021
A crewed SpaceX mission to the International Space Station has been postponed by a day due to weather concerns downrange of the launch site, NASA said Wednesday. Liftoff had been scheduled for Thursday but because of unfavorable conditions along the Atlantic coast, it will now be set for 5:49 am (0949 GMT) Friday. "For crewed missions we need to look downrange to make sure weather's good

NASA to participate in tabletop exercise simulating asteroid impact (anglès) - Dv, 23/04/2021 - 01:31
Pasadena CA (JPL) Apr 22, 2021
JPL's Center for Near Earth Object Studies will lead the hypothetical impact scenario to see how international agencies respond to an actual impact prediction. During the week of April 26, members of NASA's Planetary Defense Coordination Office (PDCO) will participate in a "tabletop exercise" to simulate an asteroid impact scenario. The exercise depicting this fictional event is being led

Perseverance extracts first oxygen from Mars surface materials (anglès) - Dv, 23/04/2021 - 01:31
Pasadena CA (JPL) Apr 22, 2021
The growing list of "firsts" for Perseverance, NASA's newest six-wheeled robot on the Martian surface, includes converting some of the Red Planet's thin, carbon dioxide-rich atmosphere into oxygen. A toaster-size, experimental instrument aboard Perseverance called the Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) accomplished the task. The test took place April 20, the 60th Martian

Twenty years of Europeans on the Space Station (anglès) - Dv, 23/04/2021 - 01:31
Paris (ESA) Apr 22, 2021
On 23 April 2001, ESA astronaut Umberto Guidoni first set foot, or hand, on the International Space Station, making him the first European to visit and work the orbiting outpost. Since then, the Space Station has grown immensely, as have the number of Europeans to have worked in it, together with the science experiments performed in orbit. When Umberto arrived, he flew on the Space Shuttle

China Orbiting 400 Satellites, Heading for 1,000 by 2030, US Space Command Chief Says (anglès) - Dv, 23/04/2021 - 01:31
Beijing (Sputnik) Apr 21, 2021
China now has 400 satellites in orbit, second only in number to the United States and it is projected to have at least one thousand of them deployed by the end of this decade, Space Command chief Army General James Dickinson said in congressional testimony on Tuesday. "Back in 2010 they had 70 satellites in orbit: Today they have 400," Dickinson told the US Senate Armed Services Committee.

OneSat Final Design Review successfully achieved (anglès) - Dv, 23/04/2021 - 01:31
Toulouse, France (SPX) Apr 22, 2021
Airbus has passed an important milestone for the OneSat flexible satellite product line, with the Final Design Review successfully achieved with customers and space agencies. The fully reconfigurable OneSat product line features major innovations and disruptive technologies including the latest digital processing and active antennas enabling several thousand beams. In addition, to meet the

The End of Space Access (anglès) - Dv, 23/04/2021 - 01:31
Bethesda, MD (SPX) Apr 21, 2021
Many recent articles have expressed concern about the growing amount of junk floating around Earth in low orbits. Ultimately, the mass and distribution of junk and active satellites will exceed the capacity of space to safely contain the debris generated by the addition of more than an estimated 50,000 new satellites planned for deployment in the next few years. If and when this limit is reached

China upgrades ground system for first-generation relay satellites (anglès) - Dv, 23/04/2021 - 01:31
Beijing (XNA) Apr 16, 2021
China has completed an upgrade of the ground system for its first-generation relay satellite, Tianlian I, according to the Beijing Space Information Transmission Center on Friday. The system upgrade marks a major advance for China in the space-based tracking, telemetry and control (TT&C) sector, said the center. The four-year upgrade was successfully completed following maintenance d

ISS sets its research scope on longer space missions (anglès) - Dv, 23/04/2021 - 01:31
Paris (AFP) April 21, 2021
Detect harmful radiation, pilot a rover module, learn better sleep and body maintenance: astronauts aboard the International Space Station are preparing for future missions even further afield - from the Moon to, one day, Mars. The latest arrival of four more astronauts to the ISS, due to blast off aboard a SpaceX rocket from Florida on Thursday, will open the door for new experiments aimed

Science without gravity at the International Space Station (anglès) - Dv, 23/04/2021 - 01:31
Paris (AFP) April 21, 2021
In two decades orbiting the Earth the International Space Station has become a cutting-edge cosmic laboratory, with astronauts researching everything from black holes to disease and even gardening in microgravity. The ISS, which orbits about 250 miles above Earth, is as large as a football field inside and divided up like a beehive into spaces where the crew can carry out experiments with g

Can a new type of glacier on Mars aid future astronauts (anglès) - Dv, 23/04/2021 - 01:31
New York NY (SPX) Apr 21, 2021
On April 21, 1908, near Earth's North Pole, the Arctic explorer Frederick Albert Cook scrawled in his diary a memorable phrase: "We were the only pulsating creatures in a dead world of ice." These words may soon take on new significance for humankind in another dead world of hidden ice, submerged beneath the red sand of its frigid deserts. This dead world is Mars, and the desert is the planet's

Hide and Seek - How NASA's Lucy Mission Team Discovered Eurybates' Satellite (anglès) - Dv, 23/04/2021 - 01:31
San Antonio TX (SPX) Apr 21, 2021
On Jan. 9, 2020, NASA's Lucy mission officially announced that it would be visiting not seven, but eight asteroids. As it turns out, Eurybates, one of the asteroids along Lucy's path, has a small satellite. Though searching for satellites is one of the mission's central goals, finding these tiny worlds before Lucy is launched gives the team the opportunity to investigate their orbits and p

Why NASA Picked SpaceX to Land Humans on the Moon

Planetary Society (anglès) - Dm, 20/04/2021 - 19:23
NASA picked SpaceX's Starship to land humans on the Moon as part of the agency's Artemis program. The decision will help humans land on Mars.

Can We Make Mars Earth-Like Through Terraforming?

Planetary Society (anglès) - Dll, 19/04/2021 - 13:00
These are some of the most compelling ideas on how to terraform Mars into a habitable, Earth-like world for future explorers.

A galaxy that spins in more ways than one

Planetary Society (anglès) - Dv, 16/04/2021 - 16:30
Listen to the sounds of the Whirlpool Galaxy and look back at our earliest picture of it.

Tianhe, the Core of the Chinese Space Station

Planetary Society (anglès) - Dj, 15/04/2021 - 19:26
Tianhe is the core module for the Chinese space station in low-Earth orbit.

Membership Clerk

Planetary Society (anglès) - Dc, 14/04/2021 - 21:44
The Planetary Society, the world’s largest independent space interest organization, seeks a Membership Clerk.

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