Search Content | Science News

SUPPORT SCIENCE NEWS.

Science News is a nonprofit.

Support us by subscribing now.

Search Content

E.g., 08/17/2019
E.g., 08/17/2019
Your search has returned 111 images:
  • hot Jupiter exoplanet
  • young star disks
Your search has returned 234 articles:
  • News

    TESS has found the first-ever ‘ultrahot Neptune’

    CAMBRIDGE, Mass. — Astronomers have spotted a new kind of planet: a Neptune-sized world sitting scorchingly close to its star. It could be in the midst of transforming from a hot, puffy gas giant to a naked rocky core, astronomer James Jenkins reported July 29 at the TESS Science Conference at MIT.

    “This planet is amazing. It’s the first of its kind,” says astronomer Elisabeth Adams of...

    07/30/2019 - 10:39 Exoplanets
  • News

    Gaps in gas disks around stars may not always mark newborn planets

    The photo album of baby planets may be emptier than astronomers thought. 

    New research is prompting debate about the theory that gaps in planet-forming disks around young stars mark spaces where planets are being created in real time. It turns out that the planets that, according to simulations, would grow up in those gaps don’t resemble the full-grown planets observed around more mature...

    07/16/2019 - 08:00 Astronomy, Exoplanets
  • News

    Moons that escape their planets could become ‘ploonets’

    Meet ploonets: planets of moonish origin.

    In other star systems, some moons could escape their planets and start orbiting their stars instead, new simulations suggest. Scientists have dubbed such liberated worlds “ploonets,” and say that current telescopes may be able to find the wayward objects.

    Astronomers think that exomoons — moons orbiting planets that orbit stars other than...

    07/09/2019 - 10:02 Exoplanets, Astronomy
  • News in Brief

    A new algorithm finds nearby stars that could host hidden worlds

    A new planet-hunting algorithm suggests that at least 9 percent of nearby stars could host planets orbiting out of sight — and the stars’ chemistry could help find the worlds.

    Planetary astrophysicist Natalie Hinkel of the Southwest Research Institute in San Antonio and colleagues trained a machine-learning algorithm on a catalog of thousands of stars and their chemical compositions (SN...

    06/25/2019 - 08:00 Exoplanets, Astrobiology
  • News

    This planetary remnant somehow survived the death of its sun

    Against all odds, a small planetary body called a planetesimal has survived the infernal death of its sunlike star and now orbits the white dwarf that remains.

    When most planet-hosting stars run out of hydrogen fuel, they blow out their outer shells of gas, obliterating anything within their inner solar systems and leaving behind a dead star called a white dwarf. Planets orbiting farther...

    04/04/2019 - 14:00 Exoplanets, Planetary Science, Astronomy
  • News in Brief

    The first planet Kepler spotted has finally been confirmed 10 years later

    A decade after being found, the first exoplanet candidate spotted by the Kepler space telescope has been confirmed as a real world.

    The planet orbits a star initially dubbed KOI 4, for Kepler Object of Interest 4 (KOIs 1 through 3 were known before Kepler launched in March 2009). When the planet passed in front of the star, it blocked a bit of starlight from reaching Kepler in Earth’s...

    03/05/2019 - 15:13 Exoplanets
  • 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
  • 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