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E.g., 06/27/2018
E.g., 06/27/2018
Your search has returned 467 images:
  • Pluto
  • Saturn moons and simulated moons
  • farside of the moon
Your search has returned 848 articles:
  • Context

    Pluto’s demotion ignores astronomical history

    If Dr. Seuss had been an astronomer, Horton the Elephant (who heard a Who) would have said “a planet’s a planet, no matter how small.”

    Even Pluto.

    But don’t quote Dr. Seuss to the International Astronomical Union. In 2006, the IAU declared Pluto a planet not. 

    IAU Resolution B5 (not to be confused with Le Petit Prince’s asteroid B 612) declared that in order to be considered...

    05/25/2018 - 13:08 Astronomy, History of Science, Planetary Science
  • Science Visualized

    Satellite smashups could have given birth to Saturn’s odd moons

    A space ravioli. A planetary baguette. A cosmic Kaiser roll. Some of Saturn’s moons have shapes that are strangely reminiscent of culinary concoctions.

    Images of the oddball moons, mostly from the now-defunct Cassini spacecraft (SN Online: 9/15/17), got planetary scientists wondering how these satellites ended up with such strange shapes. Now, researchers suggest that collisions between...

    05/21/2018 - 11:00 Planetary Science
  • Science Ticker

    China is set to launch a satellite to support a future lunar rover

    Editor's note: The Chang’e-4 relay satellite successfully lifted off from the Xichang Satellite Launch center at 5:28 a.m. Beijing time on May 21 (5:28 p.m. EDT on May 20).

    The Chinese space program is set to launch a satellite aimed at supporting future communications from a planned mission to the farside of the moon.

    The Chang’e-4 mission, which will include a rover and a lander...

    05/20/2018 - 10:00 Planetary Science
  • Letters to the Editor

    Readers amazed by Jupiter discoveries, giant viruses and more

    Jazzed by Jupiter

    Polar cyclones, a surprisingly deep atmosphere and a spin reminiscent of solid masses are among the latest discoveries the Juno spacecraft has made as it orbits Jupiter, Christopher Crockett reported in “4 surprising things we just learned about Jupiter” (SN: 3/31/18, p. 10).

    The findings astonished readers on Reddit.

    “Jupiter is one of those things [that]...

    05/16/2018 - 07:00 Animals, Planetary Science, Microbiology
  • News

    Another hint of Europa’s watery plumes found in 20-year-old Galileo data

    Jupiter’s icy moon Europa may have been spitting into space for at least 20 years. Analyzing old Galileo mission data suggests that the NASA spacecraft flew through a plume of water vapor from the moon during a 1997 flyby, researchers report May 14 in Nature Astronomy.

    “We now have very compelling support for the idea that Europa does possess plumes,” says study coauthor Xianzhe Jia, a...

    05/14/2018 - 11:00 Planetary Science, Astrobiology
  • Feature

    The recipes for solar system formation are getting a rewrite

    With a mortar and pestle, Christy Till blends together the makings of a distant planet. In her geology lab at Arizona State University in Tempe, Till carefully measures out powdered minerals, tips them into a metal capsule and bakes them in a high-pressure furnace that can reach close to 35,000 times Earth’s atmospheric pressure and 2,000° Celsius.

    In this interplanetary test kitchen,...

    05/11/2018 - 09:00 Exoplanets, Planetary Science, Astronomy
  • Reviews & Previews

    Getting NASA’s Pluto mission off the ground took blood, sweat and years

    Chasing New HorizonsAlan Stern and David GrinspoonPicador, $28

    The world tracked the New Horizons’ spacecraft with childlike glee as it flew by Pluto in 2015. The probe provided the first ever close-up of the place that many of us grew up considering the ninth planet. Pluto revealed itself as a fascinating world, with a shifting surface (SN: 12/26/15, p. 16), a hazy atmosphere (SN...

    05/06/2018 - 06:00 Planetary Science, Astronomy
  • News

    NASA gets ready to launch the first lander to investigate Mars’ insides

    Mars is about to get its first internal checkup. The InSight lander, set to launch at 7:05 a.m. EDT on May 5 from Vandenberg Air Force Base in California, will probe the Red Planet’s innards by tracking seismic waves and taking its temperature.

    Finding out what Mars’ interior is like could help scientists learn how the Red Planet formed 4.5 billion years ago, and how other rocky planets...

    05/03/2018 - 07:00 Planetary Science
  • News in Brief

    Last year’s solar eclipse set off a wave in the upper atmosphere

    It was the eclipse felt ‘round the world. The August 21, 2017, total solar eclipse that crossed the United States launched a wave in the upper atmosphere that was detected nearly an hour later from Brazil (SN Online: 8/11/17).

    “The eclipse itself is a local phenomenon, but our study shows that it had effects around the world,” says space scientist Brian Harding of the University of...

    04/30/2018 - 14:43 Planetary Science, Earth
  • News

    Asteroids could have delivered water to the early Earth

    Shooting small rocks from a high-speed cannon showed that some asteroids could have brought water to the early Earth — without all the water boiling away on impact, a new study finds.

    “We can’t bring an asteroid to Earth and crash it into the Earth, bad things would happen,” says planetary geologist R. Terik Daly, who did the research while a graduate student at Brown University in...

    04/25/2018 - 14:00 Planetary Science