The Helix Nebula is one of the most well-known and commonly photographed planetary nebulae because it resembles the “ Eye of ...

A California startup wants to use giant orbiting mirrors to reflect sunlight onto Earth after dark. The first test satellite ...

A Simon Fraser University cosmologist believes his team's new research may bring them a step closer to cracking one of ...

NASA's towering SLS rocket that will help propel four astronauts on a historic journey around the moon is now visible at the ...

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

Harvard's Avi Loeb reveals 3I/ATLAS has symmetric mini-jets at 120-degree intervals. Could these be propulsion thrusters on ...

Known as dinosaur stars for both their primeval nature and their immense size, Population III stars existed only when the ...

A geomagnetic reversal sounds like science fiction until the rock record says it has happened before. The real tension sits ...

SpaceX is gearing up for the launch of a private lunar lander set to embark on a historic journey to the Moon.

Mock observations test the performance of the Chinese Space Station Telescope as the 2-meter-class observatory moves closer ...

The James Webb Space Telescope has delivered its clearest view yet of a supermassive black hole's immediate surroundings, ...