Here's Why We Might Live in a Multiverse

March 7 – Hey everyone! How do you like our new look? This week, we're previewing a first-of-its-kind search for exomoons by the James Webb Space Telescope, diving in to the most detailed x-ray map of the heavens ever made, discussing new "ring of fire" rocket engines, and much more. Enjoy! -Lee Billings, Senior Editor, Space and Physics

Top Stories

JWST Will Finally Hunt for Alien Moons—And Much More The next year of science for the James Webb Space Telescope has been selected. It includes remote galaxy observations and, at last, a hunt for exomoons Jonathan O'Callaghan

Here's Why We Might Live in a Multiverse Several branches of modern physics, including quantum theory and cosmology, suggest our universe may be just one of many Sarah Scoles

Low Oxygen May Smother Life's Prospects on Europa, Jupiter's Ocean Moon The subsurface ocean of Jupiter's moon Europa may have far less oxygen—and less potential for life—than previously believed, according to data from NASA's Juno spacecraft Sharmila Kuthunur

New X-Ray Map of Cosmic Megastructures Unravels Subatomic Mysteries A new catalog of more than 12,000 galaxy clusters is helping scientists better understand the universe's clumpiness, dark energy and some of the smallest particles in the cosmos: neutrinos Ashley Balzer Vigil

We Need to Investigate UFOs. But Without the Distraction of Conspiracy Theories A former government official calls for investigating unidentified anomalous phenomena without succumbing to conspiracy theories about extraterrestrials Sean Kirkpatrick

Mars Sample Return Is Still Worth Doing—Even If We Have to Wait We should return samples from Mars to answer fundamental scientific questions. That could mean stretching out the mission to keep NASA's other projects intact Casey Dreier

'Ring of Fire' Rocket Engines Put a New Spin on Spaceflight Rotating detonation engines developed by NASA and others could spark a rocketry revolution Steven Ashley

Speeding Stars Can Reveal the Milky Way's Fate Maps of stellar motions can show whether the Milky Way will someday merge with the Andromeda galaxy—and a whole lot more Phil Plait

New Satellite Will Launch to Track Methane Emissions Observations from MethaneSat could be used to independently verify industry reports and enforce regulations on fossil fuel companies Chelsea Harvey; E&E News

We Need Small Astronomy as Much as Big Astronomy In an era of budget-busting mega-telescopes, we shouldn't forget the importance of smaller telescopes, more focused missions and the unexpected surprises they reveal about the universe Paul M. Sutter

Two Giant U.S. Telescopes Are Threatened by Federal Funding Cap The Thirty Meter Telescope and Giant Magellan Telescope might need to compete for survival in the face of federal spending limits Alexandra Witze; Nature magazine

How Heavy Is a Neutrino? Physicists Are Still Racing to Find Answers A new generation of lab experiments is aiming to weigh neutrinos with astonishing accuracy Davide Castelvecchi; Nature magazine

Follow Us Instagram  |  X/Twitter  |  Threads  |  Facebook  |  YouTube Manage your email preferences  |  Unsubscribe  |  Privacy Policy  |  Contact Us Scientific American One New York Plaza, New York, NY, 10010