NASA’s Juno spacecraft captured this view of Thebe, the second largest of Jupiter’s inner moons, during a close pass on May 1, 2026. The spacecraft’s Stellar Reference Unit (SRU) captured this image from a distance of approximately 3,100 miles (5,000 kilometers) at a resolution of about 1.9 miles (3 kilometers) per pixel.
This series of images shows NASA’s Curiosity Mars rover as it got a rock stuck to the drill on the end of its robotic arm, and—after waving the arm and running the drill a few times—finally detached the rock. The imagery showing the entire process was captured by the black-and-white hazard cameras on the front of Curiosity’s chassis and by navigation cameras on its mast (head).
Some of the most beautiful creatures to grace the ancient seas, the ammonites, disappeared in the end-Cretaceous mass extinction that finished off the dinosaurs 65.5 million years ago. “It’s a tragic story, because this incredibly diverse group made it through multiple mass extinctions, including the most dramatic mass extinction event in history,” the Permian-Triassic extinction, which killed off 96% of marine species about 252 million years ago, says Michael Schmutzer, an evolutionary biologist at the University of Oxford in England.
Across the Milky Way galaxy, a planetary odd couple is circling a star some 190 light years from Earth. A normally “lonely” hot Jupiter is sharing space with a mini-Neptune, in a rare and unlikely pairing that’s had astronomers puzzled since the system’s discovery in 2020.
The mechanism that can cause a rapidly expanding plasma—the superhot state of matter harnessed in fusion energy systems—to spontaneously generate its own magnetic fields was identified through a new set of simulations. This improves our understanding of naturally occurring plasmas in our universe and advances the development of fusion systems based on an approach called direct-drive inertial fusion.
Also known as Endurance, MK1 is an uncrewed cargo lander. It’s a commercial demonstration mission to advance Human Landing System capabilities in support of NASA’s Artemis program. The tests in Chamber A represent a public-private partnership model, with Blue Origin conducting work through a reimbursable Space Act Agreement.
A new publication from Bielefeld University sets a benchmark in optimization research. Together with an international team, Professor Michael Römer from the Faculty of Business Administration and Economics has developed a mathematical framework that solves a complex problem from space logistics exactly for the first time: the optimal planning of a route to visit several asteroids under conditions that are as close to reality as possible. The study is published in the INFORMS Journal on Computing.
A team of professional and amateur Japanese astronomers have found evidence for a thin atmosphere around a small body in the outer solar system. The object is so small that it should not have a sustainable atmosphere, raising questions about when and how the atmosphere formed. Future observations to better characterize the atmosphere will help solve these mysteries.
Cell walls are a crucial structure of plant life, protecting cells from damage, giving plants shape, and containing energy-rich nutrients. And yet the process of how the walls begin to form remains mysterious.
Moonlight determines when the red-necked nightjar feeds, migrates and raises its young. A groundbreaking long-term study from Lund University shows how the migratory bird’s entire annual cycle follows the moon’s rhythm.
Using MIRI (Mid-Infrared Instrument) on board the James Webb Space Telescope (JWST), a team of researchers led by former MPIA (Max Planck Institute for Astronomy, Heidelberg, Germany) Ph.D. student Sebastian Zieba (Center for Astrophysics | Harvard & Smithsonian, Cambridge, U.S.) and Laura Kreidberg, MPIA Director and study PI (principal investigator), analyzed the surface composition of the rocky exoplanet LHS 3844 b.
The Eta Aquarid meteor shower soon will light the sky with debris from Halley’s comet. But a bright moon will spoil the fun this year, making the display harder to glimpse.
We’re focusing on space news this week, but we did cover the usual amount of local news down here in Earth’s gravity well: A new Tokamak reactor regime sustained stable plasma fusion for one full minute. An anomaly in global sea level rise turns out to be due to deep ocean heating. And Chinese researchers report that they found microplastics in every part of both healthy and diseased human brains.
Millions of people watched the historic launch of Artemis II and were captivated by the mission’s 10-day journey around the moon as NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen ventured farther into space than any human before. Part of the public’s ability to experience the mission in high-definition was due to laser communications.
The astronauts on Artemis II’s trip to the moon in April 2026 didn’t just have an amazing journey through space. They also saw something extraordinary. They were the first humans to see a total solar eclipse from space.
Chinese astronomers report the discovery of DESI-HVS1, which may be an old metal-poor hypervelocity star of galactic center origin. The finding, based on the data from the Dark Energy Spectroscopic Instrument (DESI) and ESA’s Gaia satellite, was detailed in a research paper published April 23 on the arXiv pre-print server.
Expose an animal to extreme physical stress, and the expectation is simple: It will break down. But when UC Riverside scientists subjected fruit flies to forces many times stronger than Earth’s gravity—a condition called hypergravity—the insects did something unexpected. They survived. They even mated and reproduced. Their movements and behaviors changed dramatically and then, over time, they recovered.
When you’re looking for signs of extraterrestrial intelligence, it helps to know what you’re looking for and to go about it in the most efficient way. But work so far has generally not done so, writes Benjamin Zuckerman, an astrophysicist and emeritus professor in the Department of Physics & Astronomy at the University of California at Los Angeles (UCLA).
One of the most powerful radar systems ever launched into space has mapped the ground moving beneath one of the fastest subsiding capitals in the world: Mexico City. The findings show how quickly and reliably the NISAR (NASA-ISRO Synthetic Aperture Radar) satellite can track real-time changes across Earth’s surface from orbit, unhindered by clouds or vegetation that impede optical sensors and higher-frequency radars.
A century after their discovery, cosmic rays—particles of extreme energy originating from the far reaches of the universe—remain a mystery to scientists. The DAMPE (Dark Matter Particle Explorer) space telescope is tackling this phenomenon, particularly investigating the role that dark matter may play in their formation. This international mission, which includes the University of Geneva (UNIGE), has made a major breakthrough by highlighting a universal feature of these particles. The results are published in the journal Nature.
