In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word was mistaken for “canals,” and suddenly people believed Mars showed signs of ...

NASA’s Perseverance rover has uncovered what may be the strongest evidence yet of ancient life on Mars. Inside a 3-billion-year-old sedimentary rock from Jezero Crater, scientists identified dark ...

Scientists detected gases on exoplanet K2-18b linked to life on Earth. The James Webb Space Telescope's future results show a ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could thus be overlooking prime evidence of alien intelligence.

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

NASA's Curiosity rover was built for a 2-year Mars mission. Nearly 14 years later, it is still making history in Gale Crater.

NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.