The search for Planet X
The discovery of Pluto was a combination of mathematical prediction and luck.
Here’s what’s in our Nov/Dec issue
The latest issue of Australian Sky & Telescope magazine is out now. Find out what’s inside.
BepiColombo makes its first flyby of Mercury
The spacecraft zoomed just 199 km above the innermost planet’s cratered surface.
Jupiter’s Great Red Spot is a windy place
Wind speeds on the outer edge of the Great Red Spot have increased by 8% in the last decade, according to Hubble observations.
