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Enormous 3D map of the universe shows brilliant 'sea of light' near the cosmic dawnA unique technique allowed astronomers to see the early universe as a "sea of light" and explore the effects of gravity and dark energy on cosmic evolution.
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Scientists taught robots to swim through mazes using Einstein's relativityThe tiny bots follow patterns of light and "artificial space-time," navigating like craft following the curved space around a black hole.
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Do you weigh more when an elevator goes up or when it comes down?Your weight doesn't change because of gravity but because the floor pushes back. Physicists explain why elevators briefly make you feel heavier or lighter.
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New 'sungrazing' comet could become visible to the naked eye during the day — if the sun doesn't destroy itThe newly discovered sungrazing comet C/2026 A1 (MAPS) will undergo an extremely close slingshot around our star in early April, and could become bright enough to be seen without a telescope during the day.
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Every major galaxy is speeding away from us, except one — and we finally know whyA vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding toward us while our other neighbors are moving away from us.
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James Webb telescope solves mystery of 'forever young' vampire stars from the dawn of timeAstronomers have discovered how "forever young" stars stay blue and bright despite being almost as old as the universe.
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Is there anything 'below' Earth in space?Earth and its neighbors orbit the sun on a relatively flat plane. But what's below this plane, and is anythign below the Earth?
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Time moves faster on Mars, posing new challenges to crewed missionsClocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly more than that for our moon, posing potential challenges for future crewed missions.
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Two stars spiraling toward catastrophe are putting Einstein's gravity to the testThe two stars in the nearby system ZTF J2130 are spiraling toward a catastrophic supernova. In the meantime, scientists are using the pair's slow orbital decay to put Einstein's theory of gravity to the test.
