The James Webb Space Telescope has done it again, discovering the "mother of all early galaxies," a record-breaking distant ...

The object give off pulses of radio waves and X-rays, and repeats the cycle of X-rays and radio waves every 44 minutes.

A SpaceX launch of a GPS satellite Friday marked the latest national security mission taken away from United Launch Alliance ...

The celestial body, dubbed ASKAP J1832- 0911, was initially found by astronomers using the Australian Square Kilometer Array ...

Every 44 minutes, a mysterious space object nearly 15,000 light-years away sends out a blast of radio waves and high-energy X ...

Venus dominates the dawn sky. She reaches greatest western elongation, 46 degrees ahead of the rising sun, on June 1, and ...

A newly analyzed radio image reveals twin lobes stretching roughly 66,000 light-years on each side of a quasar called ...

A dam Riess was 27 years old when he began the work that earned him the Nobel Prize in Physics, and just 41 when he received ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

A dazzling cosmic swirl, NGC 3507 shines alone in this Hubble image, though it secretly belongs to a dynamic galactic duo.

A team of international astronomers has discovered a mysterious and perplexing cosmic object in our Milky Way galaxy ...

Earth’s sister planet reaches greatest western elongation and dichotomy as the waxing Moon slides along the ecliptic in the ...