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An extreme example of visible light extinction, caused by a dark nebula. In astronomy, extinction is the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the observer. Interstellar extinction was first documented as such in 1930 by Robert Julius Trumpler.
“This ‘dialogue’ with the universe is what makes our field of time-domain astronomy so incredibly thrilling.” The CHIME telescopes in British Columbia detected the unusual fast radio burst ...
Name Mass (M J) Radius (R J) Period (days) Semi-major axis () Temp. ()Discovery method Distance () Host star mass (M ☉) Host star temp. (K) Remarks BD+05 4868 Ab: 0.000063 0.028
This article is a list of notable unsolved problems in astronomy. Problems may be theoretical or experimental. Theoretical problems result from inability of current theories to explain observed phenomena or experimental results. Experimental problems result from inability to test or investigate a proposed theory.
Rock and dust samples retrieved by NASA from the asteroid Bennu exhibit some of the chemical building blocks of life, according to research that provides some of the best evidence to date that ...
An asteroid first spotted in December has a 1.2% chance of hitting Earth in 2032. Scientists are tracking the space rock to learn more about its size and trajectory.
There is a 50% chance that such a lethal GRB took place within two kiloparsecs of Earth during the last 500 million years, causing one of the major mass extinction events. [155] [16] The major Ordovician–Silurian extinction event 450 million years ago may have been caused by a GRB.
AstroForge relented after pushback from the astronomy community, acknowledging in January that it aimed to send the vehicle to an asteroid called 2022 OB5 — a relatively small space rock that ...