It’s an interstellar double header. Monday’s solar eclipse isn’t the only once-in-a-lifetime celestial event on the horizon.

Pons-Brooks, aka the Devil comet or Mother of Dragons comet, may be visible during the 2024 solar eclipse. Here's how to see ...

This is the fourth comet Gröller has discovered, but given its extraordinary distance, it was the most exciting find, he says ...

The comet can be distinguished from stars by its streaking tails of dust and energized particles, as well as the glowing green coma surrounding it. The coma is an envelope that forms around a ...

The sample return capsule of the Stardust spacecraft was successfully recovered on January 15, 2006, and its cargo of coma grains from the Jupiter-family Comet Wild-2 has now been the subject of ...

Writing in the journal Nature Communications, an international team describe how 2I/Borisov’s coma - the nebulous envelope around the nucleus of a comet - polarised light at a higher rate than ...

As the comet gets close to the sun, it gets warmed up and its icy material transforms from solid to gas. This process creates long tails and an atmosphere around the nucleus, called the coma.

When it is far from the sun, the comet is just the bare nucleus. As it gets closer to the sun, the ice within the nucleus sublimates, carrying dust to form a coma around the nucleus and trailing a ...