The DownlinkJun 27, 2025

I spy with new eyes

Space Snapshot

Virgo cluster from rubin

The Vera C. Rubin Observatory released its first images on June 23rd, unveiling stunning views of galaxies and asteroids. The above image is only a small fraction of the entire skyscape that Rubin offers. The observatory, which is a joint venture between the U.S. Department of Energy and the National Science Foundation, will use its huge digital camera to survey swaths of the sky, research dark energy and dark matter, and find millions of new asteroids and comets. With Asteroid Day coming up on June 30th, Rubin’s timing couldn’t be better: on its first night of operations alone, the observatory discovered nearly 1,000 asteroids. Image credit: NSF–DOE Vera C. Rubin Observatory

Fact Worth Sharing

Moon illustration

Rubin’s 3,200 megapixel digital camera is the largest in the world. Each of its images covers an area of the sky as big as 45 full Moons, and you would need 400 Ultra HDTVs to show just one of its pictures in full.

Mission Briefings

Twa 7b
Moon

The James Webb Space Telescope (JWST) may have discovered its first exoplanet. Using the flagship observatory, astronomers have found what looks like a Saturn-sized planet lurking in a disk of dust around the young star TWA 7. With JWST’s coronagraph, the researchers were able to block out light from the star and search for planets. JWST has used this method to study already-known worlds before, but it had never discovered a planet this way before. Image credit: ESA/Webb, NASA, CSA, A.M. Lagrange, M. Zamani (ESA/Webb)

Earth

The Axiom-4 mission launched at last. The private space mission to the International Space Station (ISS) includes one of the astronauts selected for India’s human spaceflight program, as well as the first Polish and Hungarian astronauts to reach space in more than 40 years. Axiom-4 was delayed for nearly a month, in part because of an air leak on the ISS.

Earth

ispace has figured out why its lunar lander crashed. The Japanese company says that its Resilience spacecraft, which did not survive its hard landing on the Moon earlier this month, had an issue with the laser rangefinder that measured its altitude on the fly. Though they are still narrowing down why the rangefinder failed, ispace expects to fix the problem in time for its next two lunar missions in 2027.

Sun

A private company will soon be selling pictures of the Moon. Firefly Aerospace announced that its Blue Ghost 2 mission will include an orbiter, called Elytra, that will sell images of the lunar surface with about twice the resolution of NASA’s Lunar Reconnaissance Orbiter (LRO). The spacecraft will launch next year. With LRO now over 15 years old, scientists have been advocating for new orbiters to support lunar science.

From The Planetary Society

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Another world-class telescope is one step closer to first light. The Giant Magellan Telescope (GMT), which aims to be one of the most powerful ground-based observatories of all time, has entered its final design phase. Join Sarah Al-Ahmed on this week’s Planetary Radio, as she speaks with Rebecca Bernstein, chief scientist for the GMT Organization and astronomer at the Carnegie Institution for Science, about the civilization-scale science this observatory will accomplish. Image credit: GMTO Corporation

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We’re preparing our next efforts to Save NASA Science. Now that we have delivered our petition — along with its 20,000+ signatures — to the U.S. Congress, what comes next? Jack Kiraly, our director of government relations, breaks down what the future might hold. With both the House and Senate planning to hold hearings soon, we expect more advocacy ahead.

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Shoemaker award-winners are making a difference. Over just the past two years, our support for advanced amateur astronomers has helped volunteers take thousands of observations of potentially dangerous near-Earth objects (NEOs). We checked in with our awardees to hear about their latest accomplishments. Highlights include critical measurements of asteroids that recently made headlines, as well as studies of others that ended up impacting Earth.

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When should you worry about an asteroid impact? Our handy new guide to the Torino impact hazard scale breaks the answer down so that anyone can tell which NEOs might spell catastrophe — and which are just clickbait.

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July's book club is coming up! Next month, The Planetary Society’s book club will consider what it means to view Earth from space. Join Mat Kaplan and Frank White on Tuesday, July 8, at 9 pm ET, for a live virtual event to discuss White’s new book, “The Overview Effect: Space Exploration and Human Evolution,” in our Book Club Q&A. White originally coined the term “overview effect” in the 1980s. Members can join the event in the online member community and participate in discussions with the author. Not yet a member Join today.

Help power the asteroid hunters who protect our planet.

Asteroid over earth artist impression

You can help advance the search for near-Earth objects with a gift of any amount. The more expert asteroid hunters you help us fund through The Planetary Society's Shoemaker NEO Grants program, the more we’ll be prepared to defend Earth! Plus, when you give today, your gift will be matched up to $25,000.

What's Up

Mars illustration

In the evening, look for reddish Mars in the west near Leo’s brightest star Regulus. On June 29, the Moon and the red planet appear very close in the night sky. Yellowish Saturn rises in the east in the middle of the night, staying in the sky until dawn. In the pre-dawn, look for super bright Venus in the east. Find out what else to see in June’s night skies.

Help save space missions. Join today!

Clipper being assembled

If you are not already a member, we need your help. NASA is at a crossroads, and your support is needed today! Funding for space science and exploration is at risk and needs the support of passionate advocates like you.

NASA is facing major budget cuts for the first time in a decade, and thousands of skilled scientists, engineers, and technicians have already been laid off at NASA centers across the United States. NASA funding must grow, not shrink, if the agency is to succeed in returning to the Moon, exploring the Solar System, and seeking out life beyond Earth.

We must prevent future budget cuts. When you become a member of The Planetary Society, you join the world’s largest and most influential space advocacy nonprofit. Will you join us and enable the future of space exploration?

Wow of the Week

Cosmic treasure chest

This image from the Vera C. Rubin Observatory contains roughly 10 million galaxies. While that number is already mind-boggling, it is just a tiny fraction of the 20 billion galaxies that Rubin is expected to observe over the entire course of its main survey. Image credit: NSF–DOE Vera C. Rubin Observatory

Send us your artwork!

We love to feature space artwork in the Downlink. If you create any kind of space-related art, we invite you to send it to us by replying to any Downlink email or writing to [email protected]. Please let us know in your email if you’re a Planetary Society member!