Twinkle, twinkle, little star, how I wonder what you are. If we look up at the sky at night, we see millions of tiny diamond-like stars. These are actually balls of plasma (very hot gas) consisting of…
Galaxies may look pretty and delicate, with their swirls of stars of many colours - but don’t be fooled. At the heart of every galaxy lies a supermassive black hole, including in our own Milky Way. Black…
How will future alien scientists know whether life existed in our solar system? One method may be to sift through the planetary debris left when our sun becomes a white dwarf. Astronomers are doing just…
Earlier this year, NASA spacecraft Voyager 1 left our solar system after a 35-year journey, carrying with it a golden record containing sounds, images and music from Earth. Its sister craft, Voyager 2…
Science isn’t just for scientists. It’s not just a training for careers. Today’s young people – all of them – will live in a world, ever more dependent on technology, and ever more vulnerable to its failures…
The current theory of star formation has a problem: it cannot make big stars. In the standard star-making recipe, stars are formed in the depths of gas clouds made from molecular hydrogen. These clouds…
Space is Big. Really Big. The Hitchhiker’s Guide to the Galaxy pretty much nailed space with those five words. And space is so really big that our earthly measures of distance struggle. The distance to…
My colleagues and I have confirmed the existence of a new type of star cluster – as published recently in Monthly Notices of the Royal Astronomical Society. But what are star clusters, and why do they…
Public participation in science is increasing, and citizen science has a central part in this. It is a contribution by the public to research, actively undertaken and requiring thoughtful action. Citizen…
As I write this, engineers at NASA and Ball Aerospace & Technologies have their fingers crossed they’ll be able to restart the stricken Kepler space observatory, which has been in hibernation mode…
Technology has, without doubt, expanded our understanding of space. The Voyager 1 space probe is on the brink of leaving our solar system. Massive telescopes have discovered blasts of fast radio bursts…
How many electrons are there in the universe? That may seem nigh on impossible to calculate – let alone comprehend – but the discovery of a new population of astrophysical events called Fast Radio Bursts…
It was written in the stars all along, but we’ve just found out: a whopping 70% of stars in a widely-studied cluster die before reaching old age which, for stars, is the most productive stage of their…
Sunanda Creagh, The Conversation and Michelle See-Tho, The Conversation
SS Cygni, a famous stellar system made up of one normal star and one dead star, is much closer than previously thought, according to a new study by Australian researchers and citizen scientists. The new…
As the most visible man-made object in the night sky the International Space Station (ISS) is of significance to humankind. It takes humans from being explorers of space to being residents of space. The…
Like all relationships, our association with the moon has had its ups and downs. In this series we’ve talked about the nature of the satellite and how we think it was formed - in a giant collision that…