Jean Tate
Universe Puzzle No. 9
Last week's Universe Puzzle was a wee bit too hard, wasn't it? Well, this week's one should be a tad…
Mitch’s Mystery Star, Curiouser and Curiouser
[/caption] "The most exciting phrase to hear in science, the one that heralds new discoveries, is not Eureka! (I found…
Dark Nebula
[/caption] If you've been out at night, when the air is clear, the Moon is on the other side of…
Radioactive Decay
When a nucleus undergoes radioactive decay - or decays, radioactively – it changes its state to one of a lower…
What is Dark Matter?
"Dark matter", in astronomy, usually means "cold, non-baryonic dark matter". This is a form of mass which reacts with other…
Stunning Science Using Nature’s Telescope
[/caption] Einstein started it all, back in 1915. Eddington picked up the ball and ran with it, in 1919. And…
Universe Puzzle No. 8
As with last week's Universe Puzzle, something that cannot be answered by five minutes spent googling, a puzzle that requires…
Andromeda’s Double Nucleus – Explained at Last?
In 1993, the Hubble Space Telescope snapped a close-up of the nucleus of the Andromeda galaxy, M31, and found that…
Magnetic Fields in Spiral Galaxies – Explained at Last?
[/caption] That spiral galaxies have magnetic fields has been known for well over half a century (and predictions that they…
Universe Puzzle No. 7
As with last week's Universe Puzzle, something that cannot be answered by five minutes spent googling, a puzzle that requires…