Astronomers have discovered the first confirmed dual active galactic nucleus in a Green Pea galaxy, revealing two supermassive black holes growing at the same time inside a compact, intensely star-forming system. X-ray observations with Chandra resolved two actively accreting black holes, while Keck spectroscopy confirmed that both belong to the same merging galaxy. The paper […]

A new paper has put hard numbers on a plan that’s been rattling around the astronomy community for a while now—a California company called Reflect Orbital wants to put giant mirrors in orbit and beam sunlight down to Earth after dark. The work is published on the arXiv preprint server and has been accepted for […]

Japanese scientists are readying a mission to Mars’ moons to retrieve samples that may unlock the origins of the solar system and life on Earth, although a rival Chinese mission aims to make it back first.

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Astronomers at MIT and elsewhere have spotted an extremely bright red spot in the early universe. The object resembles an enormous star, roughly the size of our solar system. But it also is putting out 100 billion times more energy than any known star can physically produce. In fact, such energies are closer to what […]

A new paper published in Physical Review Letters reveals that a leading dark matter candidate—the hypothetical “dark photon”—would not have heated the early universe as previously thought. The finding opens a vast region for experimental searches and could change the hunt for dark matter.

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From launchpads to low Earth orbit and beyond, space companies and their affiliates are deploying a familiar marketing tactic—with a new twist. In a space economy projected to reach US$1.8 trillion by 2035, they sell space exploration narratives by appealing to a desire to expand humankind beyond Earth—while downplaying or omitting the negative repercussions for […]

For astronauts in space, constipation is a well-known problem. But why this happens has long been unclear. Now, a new study from the University of Copenhagen in collaboration with NASA provides an idea of what happens in the stomach without the influence of gravity.

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A tiny UK-developed satellite, roughly the size of a small carry-on suitcase, could help answer one of the biggest questions in cosmology: What happened during the roughly 150 million years of the cosmic dark ages, before the universe’s first stars appeared?

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