• The hottest and coldest places in the Solar System

    Updated: 2024-04-23 14:00:00
    The worlds of our Solar System run the gamut of temperatures. Here are some of the hottest and coldest places we know of.

  • Watch the Full Pink Moon 2024 bloom in the night sky tonight

    Updated: 2024-04-23 13:00:35
    The Full Pink Moon of April 2024 steals the show tonight as it crosses the nighttime sky from dusk until dawn.

  • Pluto's heart-shaped scar may offer clues to the frozen world's history

    Updated: 2024-04-23 10:00:01
    How Pluto's Sputnik Planitia formed remains unknown, but researchers have imagined a body about the size of Switzerland crashing into Pluto at a shallow angle.

  • Cosmic fountain is polluting intergalactic space with 50 million suns' worth of material

    Updated: 2024-04-22 21:00:01
    Astronomers have mapped a 20,000-light-year-long fountain of gas blasting from a nearby galaxy and polluting intergalactic space at 450 times the top speed of a jet fighter.

  • Scientists use AI to reconstruct energetic flare blasted from Milky Way's supermassive black hole

    Updated: 2024-04-22 19:00:01
    Combining AI and observations of the Milky Way's supermassive black hole, scientists have reconstructed a 3D video of Sagittarius A* and its environment.

  • Scratching the surface

    Updated: 2024-04-19 14:30:00
    The latest news on missions to search for ice and water beneath planetary surfaces.

  • A sight to remember

    Updated: 2024-04-12 14:30:00
    For hundreds of millions of people, the Sun and Moon put on an astonishing show this week. Here are our eclipse highlights and more.

  • Space: See it, hear it, feel it, predict it

    Updated: 2024-04-05 14:30:00
    From spotting comets to hearing eclipses and predicting solar emissions, there are many ways to experience space phenomena.

  • How do NASA and ESA work together?

    Updated: 2024-04-04 14:00:00
    NASA and the European Space Agency (ESA) have a long-standing partnership that has resulted in spectacular science missions, including the James Webb Space Telescope and the Cassini-Huygens mission to Saturn.

  • Is Planet X/Planet Nine real?

    Updated: 2024-04-02 17:40:00
    Planet X and Planet Nine are planets that have, at one time or another, been thought to exist in our Solar System. Both were hypothesized to explain the orbital characteristics of smaller outer Solar System bodies.

  • Keeping an eye on things

    Updated: 2024-03-29 14:30:00
    Measuring changes in the Moon’s size, watching for eruptions on the Sun’s surface, and monitoring budget developments.

  • Should you be worried about solar storms?

    Updated: 2024-03-26 14:00:00
    As the Sun nears solar maximum, the odds of potentially dangerous solar storms go up. What could one do to Earth?

  • Is the Moon shrinking?

    Updated: 2024-03-25 14:00:00
    The Moon is shrinking in both actual volume and its apparent size from Earth’s perspective. We explain how scientists know this, why it happens, and how it might affect Earth.

  • Hidden depths and a cosmic mystery

    Updated: 2024-03-22 14:30:00
    Jupiter has much more going on beneath its outer clouds, and NASA invites players to unravel a fictional mystery.

  • Queqiao-2: China’s bridge for lunar exploration

    Updated: 2024-03-22 14:00:00
    China's Queqiao-2 spacecraft will relay communications to Earth to support lunar far side and south pole missions, including missions led by international partners.

  • The Planetary Society advocacy priorities in NASA’s final 2024 budget

    Updated: 2024-03-20 07:00:00
    Funding for the Near-Earth Object Surveyor, support for VERITAS, and a second lease on life for Mars Sample Return were all included in the final congressional budget for NASA in 2024.

  • Exploring The World of Bias – Episode 1

    Updated: 2024-03-16 18:03:18
    Since my retirement a few years ago, I have focused on two primary topics of interest. One is to mak

  • Transits are cool, but…

    Updated: 2024-03-15 14:30:00
    A moon transiting the Sun is awesome, but still doesn’t quite compare to a total solar eclipse. Learn why, find out about Europa Clipper’s message in a bottle, and more.

  • NASA's FY 2025 Budget

    Updated: 2024-03-12 06:00:00
    The White House proposed $25.4 billion for NASA in 2025, a modest increase from the previous year, and far less than originally planned.

  • Your impact: March equinox 2024

    Updated: 2024-03-11 14:01:00
    Announcing the first C. Wallace Hooser award for visionary philanthropy

  • Seizing upon syzygy

    Updated: 2024-03-11 14:01:00
    How scientists use total solar eclipses as opportunities to do solar science.

  • An exquisite cosmic coincidence

    Updated: 2024-03-11 14:01:00
    Why eclipses on Earth are unlike anything else in the Solar System.

  • Science to satisfy curiosity

    Updated: 2024-03-08 15:30:00
    The Curiosity rover is climbing a mountain to gain knowledge. Bringing back Mars samples will gain us even more.

  • Time. Out.

    Updated: 2024-03-06 18:10:42
    So here’s the thing: According to scientists who constantly work on and adjust the Asteroid-Satellit

  • Lunar success stories

    Updated: 2024-03-01 15:30:00
    The Odysseus spacecraft marks the return of U.S. landers to the Moon. JAXA wants you to help name an asteroid. And we’re speaking up for your place in space.

  • The coolest new space pictures: March 2024

    Updated: 2024-02-28 22:40:00
    It was a busy month at the International Space Station.

  • A ridge over hidden water

    Updated: 2024-02-23 15:30:00
    Ridges on Mars and Europa hint at past and present water. Distant dwarf planets are unexpectedly warm. And we’re working hard to help find life.

  • OSIRIS-APEX, NASA's asteroid Apophis chaser

    Updated: 2024-02-20 21:49:00
    The NASA probe is on a mission to the potentially dangerous asteroid Apophis

  • Far from predictable

    Updated: 2024-02-16 15:30:00
    Some things, like solar cycles, are hard to predict. Others, like Zoozve taking the world by storm, are even more unpredictable.

  • The path forward for Mars Sample Return

    Updated: 2024-02-14 19:25:00
    A brief summary of The Planetary Society's policy principles and recommendations for Mars Sample Return.

  • Become an Eclipse Explorer!

    Updated: 2024-02-14 15:46:00
    In anticipation of the total solar eclipse on April 8, 2024, The Planetary Society has partnered with the National Park Service to launch a new Eclipse Explorer Junior Ranger booklet.

  • The best places to search for life in our Solar System

    Updated: 2024-02-12 15:00:00
    From Earth's neighboring planets to distant moons, these are the best places to look for alien life.

  • What is Venus' quasi-moon Zoozve?

    Updated: 2024-02-12 08:34:00
    The story behind the newly-named quasi-satellite of Venus.

  • Cool and mysterious

    Updated: 2024-02-09 15:30:00
    A cool moon, a mysterious planet, and a potentially hazardous asteroid feature in this week’s space news roundup.

  • The coolest moons of Jupiter and Saturn you’ve never heard of

    Updated: 2024-02-05 15:00:00
    Meet the lesser-known moons of our Solar System's gas giants.

  • Asteroid City

    Updated: 2024-02-03 09:37:02
    Det is Berlin. Meteorites from Asteroid 2024 Bx1, which just hit Earth, may be super-rare space rock

  • Go fetch!

    Updated: 2024-02-02 15:30:00
    A rover collects samples, future Mars Sample Return missions will retrieve them, and perhaps a robotic dog will play fetch somewhere along the way.

  • What to look forward to in space in 2024

    Updated: 2024-02-02 15:00:00
    A total solar eclipse and the launch of Europa Clipper are on our list of cosmic events to get excited about this year.

  • Uranus' biggest unsolved mysteries

    Updated: 2024-01-29 15:00:00
    Distant, icy Uranus has puzzled scientists for decades. From its sideways spin to its mysterious magnetic field, the oddball world has many secrets waiting to be revealed.

  • Asteroids vs comets vs meteorites/meteoroids/meteors

    Updated: 2024-01-26 15:00:00
    A handy guide to help tease apart the differences between asteroids, comets, meteors, meteorites, and meteoroids. e

  • Twice as nice

    Updated: 2024-01-19 15:30:00
    Sometimes the Solar System offers up a planetary pair for our viewing enjoyment. Japan has a pair of missions in the news. And the Sun and Moon will pair up to create an eclipse in just 12 weeks.

  • Why the true colors of the planets aren't what you think

    Updated: 2024-01-19 15:00:00
    Cameras on our space probes act as proxies for our own eyes, but what they see isn't necessarily what our eyes would see.

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