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Three billion years ago, Earth’s life relied on a rare metal

A collaborative team of scientists has discovered that life on Earth over three billion years ago relied on the metal molybdenum, which was incredibly scarce in the environment at the time. The study, published in Nature Communications, is the first to show that molybdenum was used by ancient life this far back in our planet’s […]

Astronomers map lifetime of over 100,000 molecular clouds across 66 galaxies

An international team of astronomers has analyzed the data from the James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array (ALMA) to investigate giant molecular clouds in nearby galaxies. The new study, presented April 27 on the arXiv preprint server, unveils crucial information regarding the lifetime of more than 100,000 such clouds across 66 […]

JWST pins down the origins of a planetary odd couple

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.

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Blue Origin moon lander completes testing at NASA vacuum chamber

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.

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We might have massively underestimated Io’s thermal output

Io is a world of extremes. It is by far the most volcanically active world in our solar system. Being continually squeezed in the never-ending tug-of-war between Jupiter and its larger satellites will do that to a moon. As a result, Io has over 400 “paterae”—volcanic depressions that spew lava up onto its surface. And, […]

Optically dark gamma-ray burst reveals an unusually wide jet

Using various telescopes, an international team of astronomers has performed multi-wavelength observations of a recently identified gamma-ray burst source designated GRB 250416C. Results of the observational campaign, published April 23 on the v pre-print server, could help us better understand the nature of GRB 250416C and gamma-ray bursts in general.

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Mathematical framework solves asteroid route planning exactly for first time

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 […]

A tiny world beyond Neptune has an atmosphere that shouldn’t exist

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 […]

Astronomers uncover over 1,000 radio galaxies with ‘wings,’ expanding a rare cosmic class

Astronomers recently carried out a comprehensive search for strange “winged” radio galaxies using data from the LOFAR Two-meter Sky Survey Data Release 2 (LoTSS DR2) and discovered over 1,000 new systems. The paper outlining these results was submitted to the arXiv preprint server on April 24, 2026.

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Is the Large Magellanic Cloud a first-time visitor?

Our most massive satellite galaxy, the Large Magellanic Cloud (LMC), has been the center of a heated debate in the astrophysics community over the last few years. That debate centers on whether this is the LMC’s first or second “pass” by the Milky Way itself—and it has huge implications for the evolution of our galaxy […]

Close-in planets act as ‘bouncers’ to create rogue worlds

Rogue planets sound like rare travelers among the stars, freed from the gravitational constraints of a host system, left to forever wander the interstellar void. But modern models suggest these free floating planets (FFPs) as they are technically known, are actually very common—19 times more common than planets beyond the “snow line,” which is the […]

Astronomers explore the surface composition of a nearby super-Earth

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 […]

A bright moon may dim the Eta Aquarid meteor shower made up of Halley’s comet debris

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.

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Solar radio bursts reveal hidden magnetic switchbacks near the sun, Parker Solar Probe data suggest

Solar radio bursts are intrinsically linked to the motion of their emitting source through the coronal and heliospheric plasma. Electron transport is mostly confined to magnetic field lines. These electrons move at a substantial fraction of the speed of light and often generate radio emission via the plasma emission process.

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Canada proposes POET mission to hunt Earth-sized planets

Exoplanet science and the search for life beyond Earth continue to advance at break-neck speeds, with the number of confirmed exoplanets by NASA rapidly approaching 6,300, with 223 of those exoplanets being designated as terrestrial (rocky) exoplanets. With the promise of discovering an increasing number of Earth-sized exoplanets increasing every day, new telescopes from across […]