ESA’s XMM-Newton observatory has discovered the best-ever candidate for a very rare and elusive type of cosmic phenomenon: a medium-weight black hole in the process of tearing apart and feasting on a nearby star.

There are various types of black hole lurking throughout the Universe: massive stars create stellar-mass black holes when they die, while galaxies host supermassive black holes at their centres, with masses equivalent to millions or billions of Suns.

Lying between these extremes is a more retiring member of the black hole family: intermediate-mass black holes. Thought to be seeds that will eventually grow to become supermassive, these black holes are especially elusive, and thus very few robust candidates have ever been found.

If you thought LIGO’s recent discoveries were profound and unusual, wait until you meet OJ 287.

Spicy food has its consequences.

Black holes are notoriously messy eaters.

Using more than ten years of data, astronomers discovered traces of an unlucky star that got too close to a black hole. Because this event was partly hidden from us by dust, this discovery shows how we might find other cases of star-eating black holes.

Astronomers have been watching the full fallout of a tidal disruption event for years.

There’s something very special inside a proton and neutron that holds the key.