Astronomers have discovered a rocky exoplanet colder than Mars in orbit around a Sun-like star. The world, designated as HD ...

The coldest place on Earth isn’t just chilly, it’s cold enough to freeze your breath solid before it leaves your […] ...

Astronomers may have discovered a new Earth-sized exoplanet orbiting a Sunlike star just 146 light-years away. Before you ...

The Discovery A candidate planet that might be remarkably similar to Earth, HD 137010 b, has one potentially big difference: It could be colder than perpetually frozen Mars. Key Facts Scientists ...

Scientists argue that limiting the search for life strictly to a star’s traditional habitable zone is too restrictive. That is in light of new climate models, and observations that suggest that liquid ...

The Artemis II mission, which could launch as early as Feb. 6, aims to send humans around the moon in preparation for the ...

Officials in Mississippi say crews worked through the night to clear stranded vehicles on icy major highways as the eastern U ...

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.

As NASA gears up to send four astronauts on a crewed flight around the moon in the imminent Artemis II mission, Axiom Space ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

Russia is quietly testing a new space engine that could change everything about how we reach Mars. Early results suggest a ...