Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds and clouds — specifically, hot patchy clouds made of iron droplets and silicate dust. Scientists recently realised these giant clouds can move and thicken or thin surprisingly rapidly, in less than an Earth day, but did not understand why.
Astronomers have combined observations from several of the world’s most powerful telescopes to carry out one of the largest studies yet of molecular gas — the raw material which fuels star formation throughout the universe — in three of the most distant clusters of galaxies ever found, detected as they appeared when the Universe was only four billion years old.
The TV series “Star Trek” captured the public’s imagination with the signature phrase, “To boldly go where no one has gone before.” The NASA/ESA Hubble Space Telescope doesn’t “boldly go” deep into space, but it is “boldly peering” deeper into the universe than ever before to explore the warping of space and time and uncover some of the farthest objects ever seen.
Astronomers have uncovered a unique process for how the universe’s largest elliptical galaxies continue making stars long after their peak years of star birth. NASA’s Hubble Space Telescope revealed brilliant knots and chains of hot, blue stars forming along the jets of active black holes found in the centres of giant elliptical galaxies.