• A baby star's planet-forming disk has 3 times more water than all of Earth's oceans

    Updated: 2024-02-29 10:00:01
    Astronomers have discovered that the water content of a planet-forming disk around an infant star is enough to fill Earth's oceans three times over.

  • The coolest new space pictures: February 2024

    Updated: 2024-02-28 22:40:00
    A U.S. mission lands on the Moon for the first time in decades, thanks to collaboration between NASA and commercial space.

  • 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.

  • Principles for Mars Sample Return

    Updated: 2024-01-30 14:00:00
    Do it now. Do the science proposed by the community. Do it together. But do it with balance.

  • 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.

  • Colorful faults and false colors

    Updated: 2024-01-26 15:30:00
    We might not know what color the planets really are, but we know a whole lot of other fascinating things about them.

  • 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.

  • What is a planetary conjunction?

    Updated: 2024-01-18 16:55:00
    An explainer on planetary conjunctions, and what it means when a planet is at conjunction or at opposition.

  • Casting Shadows: Solar and Lunar Eclipses with The Planetary Society

    Updated: 2024-01-16 18:15:00
    Announcing the first in a new series of kids books from The Planetary Society and Lerner Publishing Group.

  • Destination: Moon

    Updated: 2024-01-12 15:30:00
    Getting to the Moon — or any moon — isn’t easy, but it’s worth it. That’s why we speak up in support of the hard work that it’ll take to get there.

  • Online courses

    Updated: 2024-01-09 17:08:00
    An overview of the online courses available to Planetary Society members.

  • Visions of Venus

    Updated: 2024-01-05 15:30:00
    See our neighboring planet in radar and in artwork, and catch up on the week’s space news.

  • Day of Action 2024 - Participant Information

    Updated: 2024-01-03 15:00:00
    Information for registered participants of The Planetary Society's 2024 Day of Action.

  • Happy Perihelion!

    Updated: 2023-12-29 15:30:00
    There’s lots to celebrate this week, from the New Year to perihelion and everything we’ve accomplished together during the last orbit.

  • How do we see the surface of Venus from space?

    Updated: 2023-12-29 15:00:00
    Although Venus is shrouded in a thick atmosphere, several spacecraft have been able to image its surface from space. Future missions will expand and refine the maps we already have.

  • What are Jupiter’s Galilean moons?

    Updated: 2023-12-26 15:00:00
    An introduction to Jupiter's moons Io, Europa, Ganymede, and Callisto.

  • Laser pointer + cat = science

    Updated: 2023-12-22 15:30:00
    Learn why NASA got a cat to chase a laser pointer, see the Uranus system like never before, and catch up on this week’s space news.

  • China's plans for outer Solar System exploration

    Updated: 2023-12-21 15:00:00
    A Callisto impactor, a Uranus flyby, and a dedicated ice giant orbiter could be on China’s planetary exploration horizon.

  • How did Earth get its water?

    Updated: 2023-12-19 15:00:00
    Earth's water may have been on our planet since its formation, or could have been brought here by impactors early in our planet's history. Here's a look at the leading theories about where Earth's water came from.

  • Alien clouds and those that peer through them

    Updated: 2023-12-15 15:30:00
    From mythology to technology, clouds can’t keep us from seeing what lies beneath.

  • Your impact: December solstice 2023

    Updated: 2023-12-11 14:52:00
    Space advocacy ramps up in Washington.

  • The year in pictures: 2023

    Updated: 2023-12-11 14:52:00
    Looking back at 2023 through the eyes of spacecraft.

  • Looking for long waves

    Updated: 2023-12-11 14:52:00
    Why JWST observes in the infrared.

  • Getting around in space

    Updated: 2023-12-08 15:30:00
    Planets move around a star, spacecraft make their way across planets and through space, and Planetary Society members advance our mission.

  • Perfect gifts for space lovers, by space lovers

    Updated: 2023-11-22 15:00:00
    Planetary Society members helped us create our space gift recommendations for this year.

  • 2023 Impact Report

    Updated: 2023-11-14 19:07:00
    Planetary Society members power our mission. Thanks to them, The Planetary Society was able to work effectively in 2023 to increase discoveries in our solar system and beyond, elevate the search for other life, and decrease the risk of Earth being hit by an asteroid. Here are the highlights of all we accomplished together — as well as where we're headed next!

  • How old is the Earth?

    Updated: 2023-11-14 15:30:00
    The Earth is thought to be about 4.54 billion years old. Learn more about how it formed, and how we know when this all happened.

  • News

    Updated: 2023-11-11 15:55:26
    top of page FOR EDUCATORS ELEMENTARY SCHOOL MIDDLE SCHOOL HIGH SCHOOL ASTRONOMY HIGH SCHOOL PHYSICS COLLEGE ASTRONOMY FOR K12 ADMINISTRATORS FOR STEM PARTNERS CASE STUDIES FOR HOMESCHOOL FOR AMATEURS LOGIN   Use tab to navigate through the menu . items Slooh's Online Telescope Next Generation Product Release.​ Learn More All Posts News Case Studies Star Parties Aug 31 Slooh Announces New Australian Observatory We are pleased to announce the addition of a new Slooh observatory in Siding Spring the astronomy capital of Australia Alongside the . May 9 Slooh Summer Astronomy Camp 2023 Slooh is pleased to announce our Summer Astronomy Camp 2023 Students can join one or all five of our weekly Monday Thursday sessions . Feb 10 Online Astronomy : A Gateway Science for Women in STEM On January

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    Updated: 2023-11-11 15:55:23
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