As a comet gets closer to our star, its surface heats up, causing chunks ... of Halley's Comet." Halley's Comet—which measures around 10 miles across—last passed close to Earth and the inner ...

April has been the month for meteor showers to light up ... that Halley is so often a visually brilliant comet is the same reason we get two meteor showers from it. It just gets so close to ...

Halley's Comet is one of the most famous celestial objects ... but as they orbit closer to the Sun, they heat up and spew gases and dust into a glowing head that can be larger than a planet.

PROF. SIMON SCHAFFER:'Halley collated tables of all the comet observations he could find, 'looking for similarities in their behaviour. 'What direction they came from. 'How close they got to the sun.