Astronomy news. New! Earth-like extrasolar planet found; double helix nebula; supermassive black holes, astronomy articles, astronomy pictures. Updated daily.
Updated: 15 hours 21 min ago
On Feb. 22, astronomers announced that the ultra-cool dwarf star, TRAPPIST-1, hosts a total of seven Earth-size planets that are likely rocky, a discovery made by NASA's Spitzer Space Telescope in combination with ground-based telescopes. NASA's planet-hunting Kepler space telescope also has been observing this star since December 2016. Today these additional data about TRAPPIST-1 from Kepler are available to the scientific community.
A regional dust storm currently swelling on Mars follows unusually closely on one that blossomed less than two weeks earlier and is now dissipating, as seen in daily global weather monitoring by NASA's Mars Reconnaissance Orbiter.
New images of Saturn's tiny moon, Pan, were taken on March 7, 2017, by NASA's Cassini spacecraft. These images are the closest images ever taken of Pan and will help to characterize its shape and geology.
A new technological application of interplanetary radar has successfully located spacecraft orbiting the moon -- one active, and one dormant. This new technique could assist planners of future moon missions.
Late last year, an international team including researchers announced the discovery of more than 60 extremely distant quasars, nearly doubling the number known to science - and thus providing dozens of new opportunities to look deep into our universe's history.
This beautiful Hubble image reveals a young super star cluster known as Westerlund 1, only 15,000 light-years away in our Milky Way neighborhood, yet home to one of the largest stars ever discovered.
The first massive data set of a 'cosmic census' has been released using the largest digital camera on the Subaru Telescope. With its beautiful images now available for the public at large, figuring out the fate of the Universe has come one step closer.
NASA's Hubble Space Telescope has found that the black hole at the center of our Milky Way galaxy ate its last big meal about 6 million years ago, when it consumed a large clump of infalling gas. After the meal, the engorged black hole burped out a colossal bubble of gas weighing the equivalent of millions of suns, which now billows above and below our galaxy's center.
The search for extraterrestrial intelligence has looked for many different signs of alien life, from radio broadcasts to laser flashes, without success. However, newly published research suggests that mysterious phenomena called fast radio bursts could be evidence of advanced alien technology. Specifically, these bursts might be leakage from planet-sized transmitters powering interstellar probes in distant galaxies.
Magnetic explosions happen constantly all across the universe, and new results with NASA's ARTEMIS mission help explain how near-Earth explosions convert energy into heat and propel particles toward Earth.
A team of astronomers has doubled the number of known young, compact radio galaxies -- galaxies powered by newly energized black holes. The improved tally will help astronomers understand the relationship between the size of these radio sources and their age, as well as the nature of the galaxy itself. In particular, it will help astronomers understand why there are so many more young radio galaxies than old.
Astronomers have used ALMA to detect a huge mass of glowing stardust in a galaxy seen when the Universe was only four percent of its present age. This galaxy was observed shortly after its formation and is the most distant galaxy in which dust has been detected. This observation is also the most distant detection of oxygen in the Universe. These new results provide brand-new insights into the birth and explosive deaths of the very first stars.
Using mice transplanted with human stem cells, a research team has demonstrated for the first time that the radiation encountered in deep space travel may increase the risk of leukemia in humans.
Using the world's smallest astronomical satellites, researchers have detected the biggest stellar heartbeat ever. Astronomers are hopeful that this discovery will provide the initiative to search for other such systems, creating a fundamental shift in how we study the evolution of massive stars. This is important, since massive stars are laboratories of elements essential to human life.
Astronomers have performed an extensive study of the properties of galaxies within filaments formed at different times during the age of the universe.
Mars may have been a wetter place than previously thought, according to research on simulated Martian meteorites.
UGC 12591 sits somewhere between a lenticular and a spiral. It lies just under 400 million light-years away from us in the westernmost region of the Pisces-Perseus Supercluster.
With the discovery of seven earth-sized planets around the TRAPPIST-1 star 40 light years away, astronomers are looking to the upcoming James Webb Space Telescope to help us find out if any of these planets could possibly support life.
Scientists have proven that the warning signs of one type of space weather event can be detected up to 17 minutes before it arrives at Earth -- critical time that could help protect astronauts in space.
Two separate investigations determine that microorganisms can survive on the surface of Mars, and deep in its subsurface.