An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

We can judge the value of any scientific endeavour based on how much of our knowledge it overturns or transforms.

Astronomers have captured the most detailed infrared images yet of an active galactic nucleus (AGN), using the Large ...

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass ...