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E.g., 01/18/2019
E.g., 01/18/2019
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  • KAGRA experiment
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Your search has returned 2958 articles:
  • 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

    The moon’s craters suggest Earth hasn’t erased lots of past impacts

    A new look at the moon’s craters suggests the Earth and moon both suffered a sharp increase in impacts around 290 million years ago, and Earth has kept its biggest scars.

    Geologists long assumed that erosion and tectonic activity had erased Earth’s craters so thoroughly that “you couldn’t say anything about the craters on Earth at all,” says planetary scientist Rebecca Ghent (SN: 12/22/...

    01/17/2019 - 14:06 Planetary Science
  • Feature

    Two daring spacecraft aim to bring asteroid dust back to Earth

    Shogo Tachibana greeted asteroid Ryugu with dread.

    The cosmochemist with the University of Tokyo had spent 10 years helping to design a mission to Ryugu’s surface. To touch down safely, the spacecraft, Hayabusa2, needs to find broad, flat stretches of fine-grained dust on the asteroid. But on June 27, when Hayabusa2 finally reached its target after a three-and-a-half-year journey (SN...

    01/15/2019 - 14:42 Planetary Science, Astrobiology
  • News in Brief

    The first suspected exomoon may remain hidden for another decade

    SEATTLE — A good exomoon is hard to find. Proving that the first purported moon around an exoplanet actually exists could take up to a decade, its discoverers say.

    “We’re running into some difficult problems in terms of confirming the presence of this thing,” said astronomer Alex Teachey of Columbia University at a meeting of the American Astronomical Society on January 10.

    Using...

    01/15/2019 - 07:00 Exoplanets
  • 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
  • News

    A second repeating fast radio burst has been tracked to a distant galaxy

    SEATTLE — Astronomers have spotted a second repeating fast radio burst, and it looks a lot like the first. The existence of a second repeating burst suggests there could be many more of the mysterious signals in the cosmos.

    The burst, called FRB 180814.J0422+73, is one of 13 newly discovered fast radio bursts, or FRBs — brief, bright signals of radio energy that come from distant...

    01/09/2019 - 13:08 Cosmology
  • News

    Less than a year after launch, TESS is already finding bizarre worlds

    SEATTLE — The next generation exoplanet hunter is coming into its own. NASA’s Transiting Exoplanet Survey Satellite, or TESS, has already found eight confirmed planets in its first four months of observing — and some are unlike anything astronomers have seen before.

    “The torrent of data is starting to flow already,” TESS principal investigator George Ricker of MIT said January 7 in a...

    01/08/2019 - 16:13 Exoplanets
  • Letters to the Editor

    Readers ask about electrons’ roundness, a science board game and more

    Beer today, gone tomorrow

    Rising temperatures and more frequent droughts could cut barley crop yields worldwide by the end of the century, leading to beer shortages and high prices, Jennifer Leman reported in “Add beer to the list of foods threatened by climate change” (SN: 11/10/18, p. 5).

    Online reader Jean Beaulieu was hopeful that scientists will figure out an easy way to grow...

    01/08/2019 - 07:00 Particle Physics, Climate, Robotics
  • News in Brief

    China just landed the first spacecraft on the moon's farside

    China’s Chang’e-4 lander and rover just became the first spacecraft to land on the farside of the moon.

    The lander touched down at 9:26 p.m. Eastern time on January 2, according to an announcement from the China National Space Administration. The spacecraft is part of a series of Chinese space missions named Chang’e (pronounced CHONG-uh) for the Chinese goddess of the moon.

    A small...

    01/03/2019 - 11:09 Planetary Science
  • News

    New Horizons shows Ultima Thule looks like a snowman, or maybe BB-8

    The results are in: Ultima Thule, the distant Kuiper Belt object that got a close visit from the New Horizons spacecraft on New Year’s Day, looks like two balls stuck together.

    “What you are seeing is the first contact binary ever explored by a spacecraft, two separate objects that are now joined together,” principal investigator Alan Stern of the Southwest Research Institute in Boulder...

    01/02/2019 - 17:42 Planetary Science