Can you melt dry ice? At normal air pressure, solid CO2 skips the liquid phase and turns directly into a gas (sublimation).

Ever since astronomers first detected interstellar comet 3I/ATLAS in July, speculation about its true nature has run wild.

Springtime on Earth has lots of trickling as water ice gradually melts. But on Mars, everything happens with a bang,” said ...

Discover how scientists are using Martian orbiters to track its path and what its mysterious radio signals reveal about its ...

Interstellar object 3I/ATLAS has baffled NASA and astronomers after it changed colour to 'distinctly bluer than the Sun' and ...

Amid growing scientific and public intrigue over the unusual in-plane acceleration exhibited by the interstellar comet 3I/ATLAS, mounting pressure is being placed on Nasa to release high-resolution ...

The interstellar object known as 3I/ATLAS continues to draw scientific interest and online speculation, particularly after ...

Explanation: CHACE-2 is part of the Chandrayaan-2 orbiter, launched in July 2019 to study the Moon’s exosphere composition. 2. B Explanation: CHACE = Chandra’s Atmospheric Composition Explorer, the “2 ...