When light shines on biological matter, part of the wavelength of the light that is reflected back is curled in either a clockwise or counterclockwise spiral. Astrobiologists used this phenomena in their remote sensing technique.
NASA’s Perseverance Rover that landed on Mars last month has beamed back historic audio recorded on the surface of the Red Planet.
Perseverance, the largest, most advanced rover NASA has sent to another world, touched down on Mars yesterday. The $2.4 billion rover arrived at Jezero Crater, a basin that scientists say was once flooded with liquid water.
The widely-publicized detection of phosphine gas on Venus – a possible "biosignature" suggesting the hellish planet could have living microbes in its clouds – was probably caused by sulfur gas.
Since 2019, NASA's InSight's probe, called the “mole,” has been attempting to burrow into the Martian surface. Martian soil’s tendency to clump deprived the mole of the friction it needs to hammer itself to a sufficient depth.
The current tilt of Saturn's rotation axis is caused by the migration of its satellites, and especially by that of its largest moon, Titan. Titan and the other moons are moving away from Saturn much faster than it had been previously estimated.
New work reveals the likely original locations of Saturn and Jupiter. These findings refine our understanding of the Solar System's unusual architecture, including the ejection of an additional planet between Saturn and Uranus.