space
Interstellar Comet ‘Oumuamua Has a Built-In ‘Propulsion’ System

Remember that cigar-shaped interstellar object that whizzed through our Solar System last year? It was pretty weird, right? Well, new research shows ‘Oumuamua is even stranger than we realised. Read More >>

space
The Space Between Stars Is Full of Greasy, Possibly Toxic Carbon

The space between stars may look pretty empty — and for most mundane intents and purposes, it is — but it’s actually full of electromagnetic radiation and vast clouds of matter, together collectively known as the interstellar medium. Some of it is aliphatic carbons that leak from stars, and a new study from University of New South Wales (UNSW) and Ege University researchers has found there is an awful lot of it. Read More >>

astronomy
A Visiting Star Jostled Our Solar System 70,000 Years Ago

Around the same time our ancestors left Africa, a dim red dwarf star came to within 0.8 light-years of our Sun, marking the closest known flyby of a star to our Solar System. New research suggests Scholz’s Star, as it’s known, left traces of this interstellar encounter by perturbing some comets in the outer Oort Cloud. Read More >>