Astronomy
One of the Earliest Stars Found
Astronomers from the Australian National University think they've found one of the earliest stars to have formed in the Universe.…
Podcast: Binary Wolf-Rayet Stars
Wolf-Rayet stars are big, violent and living on borrowed time. Put two of these stars destined to explode as supernovae…
Sedna Untouched for Millions of Years
Most objects in the Solar System have been resurfaced by collisions with asteroids, smaller rocks and comets. But Sedna, on…
Is There a “Fountain of Youth” in the Galactic Core?
The Milky Way - like all spiral galaxies - swings gracefully around a central super-massive black hole (SMBH). Astronomers have…
Two Massive Stars Orbiting One Another
Wolf Rayat stars are some of the most massive and dangerous stars in the Universe, living out the final days…
Podcast: Sedna Loses Its Moon
Remember Sedna? It's that icy object uncovered last year in the outer reaches of the Solar System. When it was…
Old Star Reignites its Flame
"Sakurai's Object" is a white dwarf star that surprised astronomers when if flared brightly in 1996. They originally thought it…
Cosmic Particle Accelerator at the Centre of the Milky Way
A vast looping structure 20 light-years across has been discovered near the heart of the Milky Way. The loop was…
Gamma Ray Bursts Could Have Led to Extinctions
Gamma ray busts are the most powerful known explosions in the Universe, so if one went off in our galactic…
Dark Matter at the Heart of Galaxy Groups
When you look at a galaxy, you can only see a fraction of its total mass. The rest is made…