If star-hopping aliens ever visited our solar system, Saturn is probably the planet they'd remember.
The Hubble space telescope has spent the past 30 years orbiting 547 km (340 miles) above Earth. The ageing satellite has had a couple of hiccups in the last few years, but it's not done taking incredible photos of our cosmic backyard yet.
For those looking for a sky-gazing activity on a warm summer night, Saturn and Jupiter will near the moon late Monday to form a triangle in the night sky. The event should start to take shape shortly before midnight and continue through until dawn. The easiest way to make sure you see all three [...]
The upper layers in the atmospheres of gas giants -- Saturn, Jupiter, Uranus, and Neptune -- are hot, just like Earth's. But unlike Earth, the Sun is too far from these outer planets to account for the high temperatures. Their heat source has been one of the great mysteries of planetary science.