halley's comet

Hubble Witnesses Massive Comet-Like Object Pollute Atmosphere of a White Dwarf

Hubble Witnesses Massive Comet-Like Object Pollute Atmosphere of a White Dwarf

The international team of astronomers observed the white dwarf WD 1425+540, about 170 light-years from Earth in the constellation Boötes (the Herdsman) [1]. While studying the white dwarf’s atmosphere using both the NASA/ESA Hubble Space Telescope and the W. M. Keck Observatory the team found evidence that an object rather like a massive comet was falling onto the star, getting tidally disrupted while doing so.