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E.g., 02/22/2019
E.g., 02/22/2019
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  • black hole formation
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Your search has returned 1497 articles:
  • News

    Colliding neutron stars shot a light-speed jet through space

    When a pair of ultradense cores of dead stars smashed into one another, the collision shot a bright jet of charged subatomic particles through space.

    Astronomers thought no such jet had made it out of the wreckage of the neutron star crash, first detected in August 2017. But new observations of the crash site using a network of radio telescopes from around the world show that a high-...

    02/22/2019 - 11:53 Astronomy
  • News in Brief

    Supernovas show the universe expands at the same rate in all directions

    The cosmos doesn’t care whether you’re looking up or down, left or right: In all directions, the universe is expanding at the same clip. When compared across large swaths of the sky, expansion rates agree to better than 1 percent, researchers report in a paper in press in Physical Review Letters.

    Observations of exploding stars, or supernovas, indicate that the universe is not only...

    02/22/2019 - 07:00 Physics, Astronomy
  • News

    LIGO will be getting a quantum upgrade

    WASHINGTON — Gravitational wave detectors are going quantum.

    A planned revamp of the Advanced Laser Interferometer Gravitational-Wave Observatory, LIGO, relies on finessing quantum techniques, LIGO scientists announced February 14. That $35 million upgrade could let scientists catch a gravitational wave every day, on average. LIGO’s current tally of 11 gravitational wave events could be...

    02/15/2019 - 14:54 Quantum Physics, Astronomy
  • Letters to the Editor

    Readers marvel at AI, space missions and wombat poop

    Defining intelligence

    Artificial intelligence followed fauna, diagnosed disease, mapped the moon and more in 2018, Maria Temming reported in “Artificial intelligence is mastering a wider variety of jobs than ever before” (SN: 12/22/18 & 1/5/19, p. 25).

    Online reader greg found the term “artificial intelligence” misleading. “In reality what we call AI are merely classification...

    02/10/2019 - 07:15 Artificial Intelligence, Astronomy, Animals
  • News in Brief

    Ultima Thule is shaped like two lumpy pancakes

    Visions of a space snowman have fallen flat.

    New images of Ultima Thule released February 8 indicate that the faraway space rock is much thinner than thought. Rather than two round spheres stuck together like a snowman (SN: 2/2/19, p. 7), the object, officially called MU69, is shaped more like a couple of lumpy pancakes that melded together in a frying pan.

    NASA’s New Horizons...

    02/08/2019 - 18:00 Astronomy
  • News

    A space rock collision may explain how this exoplanet was born

    Cataclysmic collisions between space rocks have helped explain some of the solar system’s biggest mysteries, from how the moon formed to how Uranus got its lopsided rotation. But convincing evidence for such events happening outside of the solar system is scant.

    Now scientists think that they have found the first known example of a near head-on collision between two massive worlds in...

    02/04/2019 - 13:40 Exoplanets, Planetary Science, Astronomy
  • Soapbox

    It’s time to start taking the search for E.T. seriously, astronomers say

    Long an underfunded, fringe field of science, the search for extraterrestrial intelligence may be ready to go mainstream.

    Astronomer Jason Wright is determined to see that happen. At a meeting in Seattle of the American Astronomical Society in January, Wright convened “a little ragtag group in a tiny room” to plot a course for putting the scientific field, known as SETI, on NASA’s agenda...

    01/28/2019 - 06:00 Astrobiology, Astronomy, Science & Society
  • Science Stats

    Ring ripples reveal how long a day lasts on Saturn

    You can’t tell how fast Saturn is spinning by watching the clouds swirling at its surface. But ripples in its rings reveal how fast the planet rotates: Its day flies by in 10 hours, 33 minutes and 38 seconds.

    “That’s a really fast clip,” says astronomer Christopher Mankovich of the University of California, Santa Cruz, who reports the rotation rate in the Astrophysical Journal on January...

    01/22/2019 - 16:59 Planetary Science, Astronomy
  • News

    A new gravitational wave detector is almost ready to join the search

    In the quest for better gravitational wave detectors, scientists are going cold.

    An up-and-coming detector called KAGRA aims to spot spacetime ripples by harnessing advanced technological twists: chilling key components to temperatures hovering just above absolute zero, and placing the ultrasensitive setup in an enormous underground cavern.

    Scientists with KAGRA, located in Kamioka...

    01/18/2019 - 07:00 Physics, Astronomy
  • News

    A cosmic flare called the ‘Cow’ may reveal a new way that stars die

    SEATTLE — Astronomers may have discovered a new way that stars can die. A mysteriously brief and bright burst whimsically called the “Cow” reveals an entirely new type of stellar death.

    The details of that stellar doom, however, remain hazy. Scientists are still debating whether the flare-up, spotted on June 16, 2018, was from an unusual type of star that was eaten by a black hole, or...

    01/14/2019 - 11:12 Cosmology, Astronomy