Mick West, a UFO investigator, suggests using modern tools for analysing UAP and suspected alien sightings, and ruling out ...

New James Webb Space Telescope (JWST) observations reveal that the so-called “Roasted Planet” is getting cooked by its host ...

An unmanned spacecraft with ties to Tucson is on track to coast around the sun this winter before sling-shotting by Mars on its way to a rendezvous with an asteroid and a dwarf planet. NASA officials ...

A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of ...

A lost Philadelphia observatory once used to track the transit of Venus may be the place where the Declaration of Independence was read publicly for the first time.

For the first time, NASA's TESS (Transiting Exoplanet Survey Satellite) mission has identified a planet orbiting a distant star thanks to its warping of space-time. Unlike the star-hugging transiting ...

Olympic legend Allyson Felix tells On SI why access, not talent, is the biggest barrier facing too many young athletes today.

Look to the west to catch Venus and Jupiter shining bright, with Saturn and Mars visible in the east for early risers, and ...

Breyton Paulse has hailed Rassie Erasmus and his Springboks coaching team for selecting younger players in the squad for the ...

At the right point of the orbit and stellar cycle, the star’s chromosphere brightens.

Asteroid 2026 LV, measuring about 47 feet across, will make a close approach to Earth on June 16, 2026. Scientists say the near-Earth object poses no threat to the planet.

The Trump administration ordered the removal of more than 900 measuring instruments installed in the depths of the Atlantic and Pacific, ending the most comprehensive ocean monitoring program in the ...