Thursday, June 12, 2025

Space & Physics: A revolutionary new telescope is about to blow astronomers’ minds

June 12 — This week, we're previewing the imminent late-June debut of a truly revolutionary telescope, but that's not all. We also have stories on the first-ever images of the sun's polar regions, a potential resolution to a puzzling particle-physics anomaly, a political rupture that may have big spaceflight repercussions, and more. Enjoy!

Lee Billings, Senior Editor, Space and Physics


The game-changing Vera Rubin Observatory will collect more astronomical data in its first year than all other telescopes combined

Later this month—June 23, to be precise—the public will at last get its first glimpse of science images from the Vera C. Rubin Observatory, one of the most exciting and transformative telescopes to come online in generations.

Named for the eponymous astronomer who pioneered early studies of dark matter, the Rubin Observatory will significantly advance studies of this mysterious, invisible material which seems to be the gravitational glue holding galaxies together. But Rubin will do much, much more—so much, in fact, that it's almost impossible to properly summarize here. Or, for that matter, in our top story this week, which previews Rubin's awesome power.

The gist, however, is that the combination of Rubin's 8.4-meter starlight-gathering mirror and the largest-ever digital camera for astronomy will allow the observatory to survey the entire overhead sky every three nights, capturing huge numbers of transient astrophysical events that would slip through the cracks for most any other facility.

The result will effectively be the largest, most richly detailed high-definition view of the heavens humanity has ever seen, and astronomers are eager to mine it for untold scientific riches. They're also a bit nervous, as drinking from Rubin's 20-terabytes-per-night firehose of celestial data will be a challenge all its own. Another worry is the increasing numbers of conspicuously bright satellites perennially swooping overhead, each one potentially contaminating or otherwise interfering with Rubin's studies.

The observatory is set to discovery oodles of near-Earth asteroids and comets (maybe even a planet or two), and further afield is expected to find astronomical numbers of supernovae and galaxies. But Rubin's most promising projected contribution is simply "the unknown," in that its unique capabilities will probe the sky in entirely new ways likely to uncover all sorts of unanticipated phenomena. No one has ever been able to view the heavens like this before—and so no one knows exactly what to expect. But, chances are, whatever Rubin turns up will be enlightening, to say the least.

Thoughts? Questions? Let me know via e-mail (lbillings@sciam.com), Twitter or Bluesky.

Thanks for reading, and I'll see you next time.

Lee Billings

Top Stories
Behold the First Images of the Sun's South Pole

Solar Orbiter isn't the first spacecraft to study the sun's poles—but it's the first to send back photographs

Do Wobbling Muons Point the Way to New Physics?

The most anticipated particle physics result of recent years is here—but the real news came one week before: the "muon g–2 anomaly" might have never existed

The Trump-Musk Fight Could Have Huge Consequences for U.S. Space Programs

A vitriolic war of words between President Donald Trump and SpaceX CEO Elon Musk could have profound repercussions for the nation's civil and military space programs

If you're enjoying this newsletter, dive deeper with a subscription to Scientific American.
A Japanese Spacecraft Has Crash-Landed on the Moon—Again

Investigations by the Japanese company ispace identified issues with speed and an altitude sensor that likely doomed the lander

Can Trump's NASA Afford to Send Humans to Mars?

The White House's budget plan for NASA would be woefully inadequate for achieving near-term human voyages to Mars, experts say

New Doubts about Milky Way–Andromeda Collision, Explanation of 2023 Marine Heat Wave and Worms That Build Towers

The Milky Way's big crash with Andromeda might not be a sure thing. Plus, we discuss an overheated ocean, a giant planet circling a tiny star and worms that build living towers.

White House Launches Another Assault on Science Funding

The Trump administration is targeting still more federal science funding, this time more than $30 billion at the Environmental Protection Agency, the National Science Foundation and other agencies

This Is Why the Sun Makes a Figure Eight in the Sky

A curious celestial phenomenon known as the analemma is a reflection of Earth's orbit and tilted axis

What We're Reading
  • IBM says it will build a practical quantum supercomputer by 2029 | New Scientist
  • Accidental find in planetarium show could shift understanding of our solar system | CNN
  • Five things in Trump's budget that won't make NASA great again | Ars Technica

From the Archive
How to Move the World's Largest Camera from a California Lab to an Andes Mountaintop

A multimillion-dollar digital camera could revolutionize astronomy. But first it needs to climb a mountain halfway around the globe

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