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A planetary collision afterglow and transit of the resultant debris cloud

Planets grow in rotating disks of dust and gas around forming stars, some of which can subsequently collide in giant impacts after the gas component is removed from the disk1–3. Monitoring programmes with the warm Spitzer mission have recorded substantial and rapid changes in mid-infrared output for several stars, interpreted as variations in the surface area of warm, dusty material ejected by planetary-scale collisions and heated by the central star: for example, NGC 2354–ID8 (refs. 4,5), HD 166191 (ref. 6) and V488 Persei7. Here we report combined observations of the young (about 300 million years old), solar-like star ASASSN-21qj: an infrared brightening consistent with a blackbody temperature of 1,000 Kelvin and a luminosity that is 4 percent that of the star lasting for about 1,000 days, partially overlapping in time with a complex and deep, wavelength-dependent optical eclipse that lasted for about 500 days. The op

Star's strange behavior ascribed to giant planet smash-up

Emissions in infrared shot up, then visible light dropped two years later.

Astronomers Detect Afterglow of Collision between Two Ice-Giant Exoplanets

Observations explore the nature of infrared source IRAS 07253-2001

Hubble snaps a seemingly peaceful galaxy. Don't be fooled.

NASA's Hubble Space Telescope captured an image of a spiral galaxy, UGC 11860, to study the remnants of a supernova detected in 2014.