Harvard astrophysicist Avi Loeb says 3I/ATLAS may “contain something else,” noting its anti-tail flips without reacting to solar radiation ...

Harvard's Avi Loeb accuses scientists of rejecting his theory that the interstellar visitor 3I/ATLAS is technological, citing ...

The Hubble Space Telescope has turned its sharp eye toward a ghostly swirl of stars and gas known as the "Lost Galaxy," given ...

The Hubble tension is especially troubling because it involves two sets of measurements that offer conflicting views of the ...

The cometary cameraman was not the only one to snap the celestial snowball of late. On November 30, NASA’s Hubble Space ...

Interstellar comet 3I/ATLAS reveals astonishingly rich organic chemistry, confirming that life's building blocks are ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

A sudden black hole flare unleashed stunning, near light speed winds that echo the Sun’s most powerful eruptions.

The Hubble Space Telescope has made multiple observations of exoplanet WASP-121 b, also known as Tylos. The extreme ...

Interstellar visitor 3I/ATLAS has returned to Hubble’s field of view, and the fresh images are forcing astronomers to rethink ...

Gamma-ray bursts (GRB) are some of the most perplexing phenomena in nature. Even though astronomers have detected about ...