It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

But in the case of the James Webb Space Telescope (JWST), which launched on Dec. 25, 2021, this anniversary marks an ...

The observations were carried out by the Breakthrough Listen program as the object neared its closest approach to Earth on ...

Our beginner-friendly guide helps you get familiar with the moon, Jupiter, nebulas and galaxies this Christmas.

The simple mistakes every stargazing newbie makes — avoid these traps and you'll get the best out of your telescope from ...

The National Weather Service expects a storm to hit Mount Hamilton on Friday night and bring 2 to 2 1/2 inches of rain to the ...

The Vaonis Hyperia telescope is priced to appeal to institutions such as observatories. It combines large optics with 17 ...

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging ...

Astronomers have confirmed that Betelgeuse has a close companion star, identified through a repeating wake of gas in its atmosphere, offering new insight into how massive stars change and lose materia ...

The James Webb Space Telescope has been helping scientists explore the cosmos for years now, but there are still plenty of unknown facts about the device.

Winds exceeding 110 mph that tore across the top of Mount Hamilton early Christmas morning blasted a massive steel protective ...