Could a frozen traveler from another star system hold secrets about worlds beyond our own? Astronomers think 3I/ATLAS might. This comet, the only third confirmed interstellar object ever detected, ...

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 ...

When something is this far outside the bounds of anything we’ve seen before, explanations are unlikely to come quickly, but a ...

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