Avi Loeb (AL): A comet is defined as an object that sheds dust and gas as a result of the illumination of pockets of ice on ...

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.

Explore how the Chandra X-ray Observatory captures high-energy details in space that other telescopes cannot detect, offering ...

If you feel a thrill every time we discover something new about the cosmos, then November 25th may have been a noteworthy day ...

Harvard astrophysicist Avi Loeb argues that the anomalous interstellar visitor 3I/ATLAS exposes a critical gap in humanity's ...

Allen Telescope Array campaign shows slow changes in radio scintillation that can nudge pulsar timing by billionths of a second ...

China and Brazil have begun building a joint laboratory for space technologies, Chinese state-owned defence electronics firm ...

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run ...

Astronomers urged Chile to relocate a planned hydrogen plant, saying it could raise light pollution and affect major observatories in the Atacama Desert ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...