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E.g., 12/13/2017
E.g., 12/13/2017
Your search has returned 563 images:
  • Titan map
  • supermassive black hole
  • illustration of 'Oumuamua
Your search has returned 1344 articles:
  • News

    Most complete map of Titan reveals connected seas and cookie-cutter lakes

    Liquid methane and ethane flow through a subterranean plumbing system on Titan, which drains lakes and connects seas. That’s one of the first scientific results from the latest, most complete map of the Saturnian moon’s topography.

    Planetary scientist Paul Corlies of Cornell University and colleagues released the map — based on all the data from NASA’s Cassini mission, which ended in...

    12/08/2017 - 12:40 Astronomy, Planetary Science
  • Science Ticker

    The most distant quasar ever spotted hails from the universe’s infancy

    The most distant quasar yet spotted sends its light from the universe’s toddler years. The quasar, called J1342+0928, existed when the universe was only 690 million years old, right when the first stars and galaxies were forming.

    Quasars are bright disks of gas and dust swirling around supermassive black holes. The black hole that powers J1342+0928 has a mass equivalent to 800 million...

    12/06/2017 - 13:00 Astronomy, Cosmology
  • News

    We still don’t know where the first interstellar asteroid came from

    ISO: A home for a stray space rock. Astronomers are tracking the motions of stars to figure out which one sent an alien asteroid speeding past Earth in October — but they may never find the rock’s true origins.

    Officially named ‘Oumuamua, the asteroid was spotted by the Pan-STARRS 1 telescope in Hawaii on October 18 (SN: 11/25/17, p. 14). Its inbound speed of about 25.5 kilometers per...

    12/01/2017 - 11:38 Astronomy, Planetary Science
  • News

    Collision illuminates the mysterious makeup of neutron stars

    On astrophysicists’ charts of star stuff, there’s a substance that still merits the label “here be dragons.” That poorly understood material is found inside neutron stars — the collapsed remnants of once-mighty stars — and is now being mapped out, as scientists better characterize the weird matter.

    The detection of two colliding neutron stars, announced in October (SN: 11/11/17, p. 6),...

    12/01/2017 - 07:00 Physics, Astronomy
  • Mystery Solved

    Here’s what really happened to Hanny’s Voorwerp

    The weird glowing blob of gas known as Hanny’s Voorwerp was a 10-year-old mystery. Now, Lia Sartori of ETH Zurich and colleagues have come to a two-pronged solution.

    Hanny van Arkel, then a teacher in the Netherlands, discovered the strange bluish-green voorwerp, Dutch for “object,” in 2008 as she was categorizing pictures of galaxies as part of the Galaxy Zoo citizen science project....

    11/27/2017 - 15:30 Astronomy
  • Science Ticker

    Here is Cassini’s last broad look at the Saturn system

    Two days before plunging into Saturn, the Cassini spacecraft took one last look around the planet it had orbited for more than 13 years.

    The view of Saturn above, released November 21, is actually made from 42 images that have been stitched together. Six moons — Enceladus, Epimetheus, Janus, Mimas, Pandora and Prometheus — are faintly visible as dots surrounding the gas giant (see the...

    11/22/2017 - 06:00 Astronomy, Planetary Science
  • Science Ticker

    The Arecibo Observatory will remain open, NSF says

    The iconic Arecibo Observatory has survived a hurricane and dodged deep budget cuts. On November 16, the National Science Foundation, which funds the bulk of the observatory’s operating costs, announced that they would continue funding the radio telescope at a reduced level.

    It’s not clear yet who will manage the observatory in the long run, or where the rest of the funding will come...

    11/17/2017 - 15:15 Astronomy
  • Science Ticker

    Colliding black holes are reported for a fifth time

    Spacetime ripples from black holes are becoming routine.

    For a fifth time, scientists have reported the detection of two colliding black holes via their gravitational waves, tiny vibrations that warp the fabric of spacetime. Unlike previous gravitational wave detections, which were heralded with news conferences often featuring panels of scientists squinting at journalists under bright...

    11/16/2017 - 11:40 Physics, Astronomy
  • Editor's Note

    In science, some big risks are worth the rewards

    At the end of my previous Editor’s Note (SN: 11/11/17, p. 2), I wrote about one of the great discoveries of the 1920s. By studying distant nebulae, Edwin Hubble found that our galaxy is not alone in the universe. Instead, it is one of an amazing multitude of “island universes.” When I wrote those words, I had no idea that just a couple of weeks later, I would get to visit the impressive...

    11/15/2017 - 13:18 Science & Society, History of Science, Astronomy
  • News

    Haze keeps Pluto cool by kicking heat out to space

    Blame Pluto’s haze for the dwarf planet’s unexpected chilliness. Clusters of hydrocarbons in the atmosphere radiate heat back into space, keeping the dwarf planet cool, a new study suggests. Pluto may be the only world in the solar system whose atmospheric temperature is controlled by solid particles, rather than gas, researchers report in the Nov. 16 Nature.

    Most planets’ temperatures...

    11/15/2017 - 13:00 Astronomy, Planetary Science