It's a moment that's often been depicted in science fiction - but what would actually happen when extraterrestrials make ...

Determining the expansion rate of the universe, the "Hubble constant," shapes our understanding of the cosmos, its age, and ...

The optics for NASA's Nancy Grace Roman Space Telescope have been delivered, marking a big milestone in the assembly of the ...

(NASA) – A Neptune-sized planet, TOI-3261 b, makes a scorchingly close orbit around its host star. Only the fourth object of its kind ever found, the planet could reveal clues as to how planets such ...

Two different space telescopes have looked at the same galaxy, so you can see the difference in how they observe the universe ...

Dubbed “Mystic Mountain,” this is a region of the much more extensive Carina Nebula. In it, towers of cool hydrogen gas laced with dust are seen to rise along the nebula’s wall ...

"We pushed our detection limit down to the brown dwarfs of the cluster, which are the smallest stars that can form!" ...

Does someone on your holiday gift list have a passion for checking out the stars? WTOP space expert Greg Redfern has some ...

The PRIMA space telescope would observe the cosmos in far-infrared light, while AXIS would be an orbiting X-ray detector.

For Europe to prosper in the new world order, we must unite in space, writes Director-General of the European Space Agency (ESA) Josef Aschbacher.

New images show the rapidly rotating pulsar of the "Guitar Nebula" shooting out a gigantic cosmic plume of plasma, X-rays and ...

NASA's NEOWISE telescope ended its journey through space in November when it re-entered Earth's atmosphere and burned up ...