A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The planets have been nicknamed Earth's seven sisters. — -- An international team of astronomers has discovered seven potentially habitable exoplanets — or planets outside our solar system — that ...

Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity ...

New research from the University of St Andrews has found that giant free floating planets have the potential to form their own miniature planetary systems without the need for a star. Subscribe to our ...

Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with ...

"The formation of planetary systems is not exclusive to stars but might also work around lonely starless worlds." Our parochial view of planets orbiting a central star — so familiar because it is the ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

A study led by Howard Chen looks to explain what NASA space telescopes are missing in the search for life beyond Earth.

While telescopes point up at the sky and scan the recesses of space, probes like Voyager 1 are traveling incredible distances ...

Some of the most promising places to look for extraterrestrials have remained, so far, mostly hidden from astronomers. Now a game-changing instrument called NIRPS (Near-Infrared Planet Searcher) is ...

"Considering the direction and frequency of our most common signals gives insights into where we should be looking to improve our chances of detecting alien technosignatures." Scientists have taken a ...

With basic science and imagination, we can hypothesize what life might develop on other planets James Trefil and Michael Summers You are in a long, dark tunnel walled with solid ice. The only light ...