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3rd possible planet found orbiting nearest star
Astronomers say they have discovered a 3rd possible planet orbiting the closest star to our sun, Proxima Centauri. It is only about 1/4 of Earth's mass.
February 23, 2022
What are black holes?
Black holes are regions of space with gravitational fields so strong that nothing, not even light, can escape. Their sizes vary from stellar to supermassive.
February 23, 2022
A habitable zone planet for a dead star?
A possible habitable zone planet may be orbiting the white dwarf star WD1054–226. Weird, evenly spaced clouds of debris hint at its existence.
February 22, 2022
Why so many dead galaxies in this galaxy cluster?
Astronomers found a galaxy cluster in the early universe unlike others from its era. The newborn cluster - MAGAZ3NE J095924+022537 - has old, red, dead stars.
February 21, 2022
Largest galaxy yet seen, in radio: Alcyoneus
Astronomers have discovered the largest galaxy yet via radio astronomy. It would take 100 Milky Way galaxies laid end to end to equal its size.
February 20, 2022
February 18, 1930: Clyde Tombaugh discovers Pluto
On this date in 1930, Clyde Tombaugh, searching for a 9th planet, discovered Pluto. This opened the door to further exploration of the outer solar system.
February 18, 2022
Quadruple asteroid is 1st of its kind
Astronomers have found the 1st quadruple asteroid system. Elektra, a main belt asteroid, has three small moonlets in orbit around it.
February 17, 2022
History of Milky Way mergers revealed in Gaia data
Astronomers analyzed Gaia data to create an atlas of Milky Way mergers with smaller galaxies, using data about stellar streams and globular clusters as well.
February 17, 2022
Chelyabinsk meteor: February 15, 2013
On February 15, 2013, the Chelyabinsk meteor streaked across the sky over Russia - brighter than the sun - and then exploded.
February 15, 2022
1st wandering black hole found in Milky Way
For the 1st time ever, astronomers say they have found a solitary, wandering black hole in our galaxy. It is estimated to be 7.1 times the mass of the sun.
February 13, 2022
