Venus-like worlds are surprisingly common in 'habitable' zones
The current definition of habitable zone only examines the amount of sunlight reaching a planet. It may be time to question that definition.
The current definition of habitable zone only examines the amount of sunlight reaching a planet. It may be time to question that definition.
Mars, the moon and asteroids will get a deeper look from these spacecraft with eight NASA mission extensions.
New meteorite research suggests that cosmic impacts might have helped deliver vital ingredients of life to ancient Earth.
It took 30 years to find so many alien worlds, but the pace of discovery is accelerating.
The tiny Mars moon Phobos looms large on the sun's face in dramatic eclipse footage captured by NASA's Perseverance rover.
Perseverance just reached the remains of an ancient Red Planet river delta, a set of layered rocks that has long been the life-hunting rover's main science target.
More than 200,000 Facebook users say they're interested in joining a raid on Nevada's infamous Area 51 air base this summer.
1,500 pages of UFO related research has been declassified by the US government following a FOIA request by The Sun
Multiple research teams are developing missions designed to address Venus' potential as an abode for life.
Reference Area 51 is a U.S. military base that has become synonymous with tales of UFOs, government cover-ups and potentially testing alien technology.
Scientists have crafted a new message for intelligent extraterrestrials
An area of Pluto that researchers think was formed from the eruption of ice volcanoes is unique on the dwarf planet and in the solar system, a new study suggests.
The first whiff that humans catch of life beyond Earth might be methane, but scientists will need to tread carefully before declaring a discovery based on the chemical.
The NASA-ESA campaign to haul Mars samples back to Earth will require two Red Planet landers instead of one. The change will delay the arrival of samples here by two years, to no earlier than 2033.
A circular shape on the seafloor visible on Google Earth is raising cries of "UFO," but chances are … it's not aliens.
In a new study, researchers predict what an alien "Earth" could really look like, and how it could evolve (if one exists).
NASA's top-notch Red Planet geology rover is moving on to explore an ancient river delta now that its eighth rock sample is secured for future analysis.
A new competition with HeroX asks for innovative ways to analyze data gathered on the Red Planet.
Planetary debris, including some objects the size of moons, may hint at a rocky exoplanet within the habitable zone of a dead star, a new study suggests.