“The frost-covered ridge is facing the pole, therefore receiving less solar radiation than the neighboring equator-facing slope,” ESA explained in a post. “On Mars, incoming solar radiation transforms the ice into water vapour directly without melting it first into water in a process called sublimation. Since the north-facing slope (on the left) has had a longer exposure to solar radiation, its ice has sublimated more quickly.” … [Read more...] about See spring arriving on Mars in these ExoMars images
Nasa to mars
NASA’s InSight lander shows what’s beneath Mars’ surface
The data was collected using NASA’s InSight lander, which uses an instrument called a seismometer to measure vibrations coming from within Mars. It detects marsquakes, in which seismic waves pass through the planet, which can be used to infer details about the density and the composition of the planet beneath the surface. … [Read more...] about NASA’s InSight lander shows what’s beneath Mars’ surface
How the next generation of space telescopes will hunt for habitable exoplanets
This technique can be further refined to detect exoplanets. “If that foreground star happens to have a planet, then that planet has mass, which means it can gravitationally lens that star as well,” Gaudi said. “So if one of those two images of that background star created by the foreground host star happens to pass close to the planet, it will cause a brief additional brightening or dimming, which last between a few hours, in the case of an Earth-mass planet, to a few days, in the case of a Jupiter-mass planet.” … [Read more...] about How the next generation of space telescopes will hunt for habitable exoplanets
Russia wants to build its own reusable rocket, Roscosmos chief says
Prior to the recent successful crewed test flight of the SpaceX Crew Dragon capsule, NASA had been reliant on Russian Soyuz rockets to carry its astronauts into space for stays at the International Space Station. Each launch was a considerable cost to NASA of $80 million per seat on the rocket. With the Crew Dragon, NASA now has a U.S.-based option for launching astronauts, and Russia is therefore trying to keep up with new developments in rockets. … [Read more...] about Russia wants to build its own reusable rocket, Roscosmos chief says
