• Old becomes new

    Updated: 2024-05-31 14:30:00
    A star will become visible in the night sky, and old data from Venus yield new discoveries.

  • What are competed planetary missions?

    Updated: 2024-05-30 13:30:00
    A critical part of a balanced exploration program, competed missions are scientist-led projects that cost less and occur more frequently than large, flagship-class missions.

  • How to see the nova (“new star”) in Corona Borealis

    Updated: 2024-05-29 16:07:00
    A giant stellar explosion is going to be visible from Earth. Here's how to see it.

  • Mars rovers, helicopters, and sunsets

    Updated: 2024-05-24 14:30:00
    This week brings updates on the next missions to rove — and maybe even fly — over the surface of Mars.

  • Earth’s quasi-moons, minimoons, and ghost moons

    Updated: 2024-05-21 14:00:00
    They may not be real moons, but they're worth exploring and studying.

  • A certain flair for solar activity

    Updated: 2024-05-17 14:30:00
    The Sun was in the spotlight this week, with a huge solar storm and the biggest solar flare in over a decade.

  • Can you imagine?

    Updated: 2024-05-10 14:30:00
    From visionary technologies to unusual planetary views, this week’s Downlink will challenge your imagination.

  • What is the difference between astronomy and astrology?

    Updated: 2024-05-01 20:31:00
    The words may be similar, but astronomy (a science) and astrology (a divinatory practice) are very different things.

  • Science on the docket: The 2024 Congressional Day of Action

    Updated: 2024-05-01 20:21:00
    A recap of The Planetary Society's 2024 Day of Action in Washington, D.C.

  • Volcanoes are so hot right now

    Updated: 2024-04-26 14:30:00
    From Mars to Io, volcanoes top the list of hottest things in space right now — both literally and figuratively.

  • What are planets made of?

    Updated: 2024-04-25 14:00:00
    A look at the compositions of terrestrial planets, gas giants, and ice giants in our Solar System.

  • 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.

  • Scratching the surface

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

  • At Eclipse-O-Rama, cosmic beauty and community

    Updated: 2024-04-18 14:00:00
    On a ranch in the Texas hill country, members of The Planetary Society gathered to marvel at the 2024 total solar eclipse as a community.

  • 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.

  • 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.

  • How to find eclipse events in your area

    Updated: 2024-03-18 14:00:00
    There are hundreds of eclipse events being held all across North America. Here's how to find one near you.

  • 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.

  • 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.

  • 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

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