Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

The yet-to-be-peer-reviewed findings indicate that comet 3I/ATLAS shares similarities with the icy trans-Neptunian objects — ...

NASA’s confirmation that comet 3I/ATLAS is experiencing a subtle but real non‑gravitational acceleration has turned a niche orbital puzzle into a broader test of how we interpret strange visitors from ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

What can be inferred if a comet from another star system accelerates in a manner that our models cannot fully account for? That is the question at the center of the latest storm of scientific ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Researchers have developed an AI system that learns about the world via videos and demonstrates a notion of “surprise” when ...

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

Neutron stars are compact objects with strong gravity and extreme magnetic fields. A research team investigated long-term ...

Harvard's Avi Loeb claims interstellar comet 3I/ATLAS is escorted by a swarm of unknown objects, challenging NASA's view.

A new type of sensor that levitates dozens of glass microparticles could revolutionize the accuracy and efficiency of sensing ...