22 Jul 2021, 12:00 UTC Using the Atacama Large Millimetre/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner, astronomers have unambiguously detected the presence of a disc around a planet outside our Solar System for the first time. The observations will shed new light on how moons and planets form in young stellar systems. Next Previous
16 Jul 2021, 12:00 UTC Next Previous
29 Jun 2021, 12:00 UTC Today, an international team of scientists, including researchers at MIT, have announced the detection of a new kind of astrophysical system: a collision between a black hole and a neutron star — two of the densest, most exotic objects in the universe. Scientists have detected signals of colliding black holes, and colliding neutron stars, but had not confirmed a merging of a black hole with a neutron star until now. In a study appearing today in The Astrophysical Journal Letters, the scientists report observing not just one, but two such rare events, each of which gave off gravitational waves that reverberated across a large swath of the universe before reaching Earth in January 2020, just 10 days apart. The gravitational waves from both collisions were detected by the National Science Foundation’s Laser Interferometer Gravitational-Wave Observatory (LIGO) in the United States, and by Virgo in Italy. The events are named GW200105 and GW200115, for the date when each gravitational wave was observed. Both signals represent the final moments as a black hole and a neutron star spiraled in and merged together. For GW200105, the black hole is estimated to be about 9 times the mass of the sun, with a companion ... Next Previous
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26 May 2021, 14:21 UTC Astronomers continue to develop computer simulations to help future observatories better home in on black holes, the most elusive inhabitants of the universe. The simulations, created by computers working through sets of equations too complicated to solve by hand, illustrate how matter interacts in merger environments. Scientists can use what they learn about black hole mergers to identify some telltale characteristics that let them distinguish black hole mergers from stellar events. Next Previous
17 May 2021, 13:45 UTC Next Previous
American Astronomical Society 28 Jul 2021, 01:10 UTC An international team of astrophysicists has discovered the presence of transverse rotation in three dwarf spheroidal galaxies, a very faint type of galaxies and difficult to observe, which are orbiting round the Milky Way; this helps to trace their evolutionary history.
NASA's Goddard Space Flight Center 26 Jul 2021, 15:00 UTC For the first time, astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter's moon Ganymede. This water vapor forms when ice from the moon's surface sublimates -- that is, turns from solid to gas.
NASA's Goddard Space Flight Center 23 Jul 2021, 12:30 UTC The center of this image from the NASA/ESA Hubble Space Telescope is framed by the tell-tale arcs that result from strong gravitational lensing, a striking astronomical phenomenon which can warp, magnify, or even duplicate the appearance of distant galaxies
NASA's Jet Propulsion Laboratory News and Features 22 Jul 2021, 07:00 UTC Three papers published today share new details on the crust, mantle, and molten core of the Red Planet.
NASA Breaking News 21 Jul 2021, 16:45 UTC NASA is making final preparations for its Perseverance Mars rover to collect its first-ever sample of Martian rock, which future planned missions will transport to Earth. The six-wheeled geologist is searching for a scientifically interesting target in a part of Jezero Crater called the “Cratered Floor Fractured Rough.”
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SPACE.com 28 Jul 2021, 19:38 UTC A team of astronomers have calculated how the intensity of the sun's solar wind will evolve over the next 5-billion-or-so years, when our star runs out of hydrogen fuel to burn and balloons into a tremendous red giant.
Perseverance is About to Collect the First Sample on Mars That Could Eventually be Returned to Earth26 Jul 2021, 21:04 UTC On Feb. 18th, 2021, NASA’s Perseverance rover landed within the Jezero Crater on Mars. Like its predecessor, Curiosity, a fellow member of NASA’s Mars Exploration Program (MEP), the goal of Perseverance is to seek out evidence of possible life on Mars (past and present). A key part of this mission will be the first sample return ever performed on Mars, where samples obtained by Perseverance will be placed in a cache for later retrieval and return to Earth.
SciTech Daily 26 Jul 2021, 16:55 UTC Black holes with masses equivalent to millions of suns do put a brake on the birth of new stars, say astronomers. Using machine learning and three state-of-the-art simulations to back up results from a large sky survey, the researchers resolve a 20-year long debate on the formation of stars.
Universe Today 25 Jul 2021, 14:11 UTC Observing the dark side of planets is hard. In the visible spectrum, they are almost unobservable, while in the infrared some heat signatures may come through, but not enough to help see what is going on in a planet’s atmosphere. Now a team from the University of Tokyo think they’ve developed a way to monitor weather patterns on the night side of one of the most difficult planets of all – Venus.
SpaceFlight Insider 24 Jul 2021, 10:00 UTC A future mission seeking signs of life on Jupiter’s moon Europa will likely require drilling into its global subsurface ocean, according to a new study published in the journal Nature Astronomy.