Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these ...

In a recent piece for my column The Universe, I wrote about the biggest black holes in the cosmos. Black holes are rather famous for being, well, black because they can gobble down even light itself.

In the 30 years since the discovery of 51 Pegasi b, more than 6,000 planets outside our Solar System have been catalogued. Two modern-day explorers explain how.

Loeb has also pointed out that the object’s highly unusual trajectory brings it suspiciously close to Jupiter, Mars, and ...

So, where is the anomaly? According to Loeb, the mystery is why we haven't spotted many more interstellar objects before we ...

“This milestone represents decades of cosmic exploration driven by NASA space telescopes — exploration that has completely ...

Snyder and Hatch depict a lovely range of holiday moments: on one night, the family gets a flat tire and improvises a candle ...

The motion of 3I/ATLAS that helped trace its trajectory revealed a non-gravitational acceleration, which revealed the size of the comet.

The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic core—accounting for about 70% of its mass—and a relatively small rocky ...

A ROGUE planet was spotted growing at a mind-bending rate of six billion tonnes a SECOND. The lost world doesn’t have a home ...