space
Study Finds Weird Interstellar Object ‘Oumuamua Isn’t As Big As We Thought

Scientists have learned more about ‘Oumuamua, the hunk of matter that is the first known interstellar object to ever be detected by scientists within the boundary of the solar system. Specifically, observations performed by researchers using the Spitzer Space Telescope and published in The Astronomical Journal have determined that prior observations likely established too generous an upper boundary on how large it could be. Read More >>

space
Why a Mission to a Visiting Interstellar Object Could Be Our Best Bet for Finding Aliens

Life may exist elsewhere in the Milky Way galaxy, though try as they might, scientists have yet to detect any sign of it. Part of the problem has to do with the size of space; finding traces of organic substances or the waste signatures of alien megastructures isn’t easy at such cosmic distances. Fortunately, there’s the possibility that alien life will come to us in the form of interstellar objects. Read More >>

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 >>