(PhysOrg.com) -- Launched in September of 2007, and propelled by any one of a trio of hyper-efficient ion engines, NASA's Dawn spacecraft passed the orbit of Mars last summer. At that time, the asteroid belt (where Dawn's ...
Space Exploration
Feb 13, 2009
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0
On Earth all biology is subjected to gravity. Some biological systems require gravity for correct orientation (geotropism: plants grow up, roots grow down). In the absence of gravity even human biology is affected: astronauts ...
Biotechnology
Jan 31, 2012
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0
Based on the analysis of marsquakes recorded by NASA's InSight mission, the structure of Mars's crust has now been determined in absolute numbers for the first time. Beneath the InSight landing site, the crust is either approximately ...
Space Exploration
Jul 22, 2021
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(PhysOrg.com) -- The first global gravity model based on GOCE satellite data has been presented at ESA's Living Planet Symposium. ESA launched GOCE in March 2009 to map Earth's gravity with unprecedented accuracy and resolution.
Space Exploration
Jun 29, 2010
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0
(PhysOrg.com) -- The Dawn spacecraft has completed a graceful spiral into the first of four planned science orbits during the spacecraft's yearlong visit to Vesta. The spacecraft started taking detailed observations on Aug. ...
Space Exploration
Aug 12, 2011
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0
The road uniting quantum field theory and general relativity – the two great theories of modern physics – has been impassable for 80 years. Could a tool from condensed matter physics finally help map the way?
General Physics
Apr 23, 2014
10
0
In the eROSITA all-sky survey, scientists at the Max Planck Institute for Extraterrestrial Physics (MPE) have found an interesting repeating event. In an otherwise quiescent galaxy, an X-ray flare repeats every 220 days, ...
Astronomy
Jan 13, 2023
0
197
A pair of NASA spacecraft tumbled out of orbit around the moon and crashed back-to-back into the surface on Monday, ending a mission that peered into the lunar interior.
Space Exploration
Dec 17, 2012
4
0
(PhysOrg.com) -- ESA's XMM-Newton space observatory has watched a faint star flare up at X-ray wavelengths to almost 10 000 times its normal brightness. Astronomers believe the outburst was caused by the star trying to eat ...
Astronomy
Jun 28, 2011
7
0
Geologists from the University of Sydney and the California Institute of Technology have solved the mystery of how Australia's highest mountain - Mount Kosciuszko - and surrounding Alps came to exist.
Earth Sciences
Mar 15, 2016
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