Just as you bounce sunlight off a watch face into a light spot, Reflect Orbital’s satellites would use mirrors to beam light onto Earth.

China laser hits the Moon in daylight at 130,000 km, enabling 24/7 lunar navigation, precise tracking, and a future-ready lunar GPS network.

A proposed constellation of satellites has astronomers very worried. Unlike satellites that reflect sunlight and produce ...

Comet Lemon will be in the heart of the constellation Boötes, the Herdsman, as it makes its closest approach to Earth on Oct. 21, before travelling on to pass beneath the head of the great serpent ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

A powerful new telescope in outback Australia has mapped vast areas of the universe in record-breaking time, revealing a million new galaxies and opening the way to new discoveries, the country's ...

In the test, a flat, square mirror roughly 2.5 metres across directs a beam of light down to solar panels and sensors. In one ...

Comets SWAN and Lemmon will both swing by Earth and appear bright in the sky near the end of October. Here’s how to see them.

This Celestron Astromaster 130EQ is seriously discounted for Prime Day, perfect for moongazing or viewing this month's stunning Orionid meteor shower.

A group of astronomers has uncovered a rare celestial configuration that’s rewriting what we know about how dark matter ...