Aurorae and solar maximum

We were at latitude 71º north, in the Barents Sea off Norway, when we got our first “Wow!” moment. No geomagnetic storm had been predicted, but there, around the stars of Cassiopeia, a greenish curtai

New model suggests Hawking radiation is speeding cosmic decay Scientists have long predicted that the Universe’s lifetime is effectively forever – specifically, 101100 years. But now scientists from R

The Sun’s surface often looks speckled with darker regions. These are sunspots – cooler patches that form as a result of the Sun’s complex magnetic field preventing heat from reaching localised areas

BEST TIME TO SEE: Nights of 9/10, 10/11 and 11/12 July A full Moon occurs when the Moon is opposite the Sun in the sky or, in other words, when its ecliptic longitude is 180° from the Sun. The eclipti

1 Jul 00:00 AEST (30 Jun, 14:00 UT) 15 Jul 23:00 AEST (13:00 UT) 31 Jul 22:00 AEST (12:00 UT) The chart accurately matches the sky on the dates and times shown for Sydney, Australia. The sky is differ

BEST TIME TO SEE: From 03:30 BST (02:30 UT) all month. Closest approach on 12 August Venus is the brightest planet that can be seen from Earth. At its peak brightness, when 22% illuminated, Venus appr