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Latest about gravity
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.
New 'sungrazing' comet could become visible to the naked eye during the day — if the sun doesn't destroy it
The 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.
Every major galaxy is speeding away from us, except one — and we finally know why
A 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.
James Webb telescope solves mystery of 'forever young' vampire stars from the dawn of time
Astronomers have discovered how "forever young" stars stay blue and bright despite being almost as old as the universe.
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?
Time moves faster on Mars, posing new challenges to crewed missions
Clocks 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.
Two stars spiraling toward catastrophe are putting Einstein's gravity to the test
The 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.
Record-breaking 'dark object' found hiding within a warped 'Einstein ring' 10 billion light-years away
Researchers have found a suspected clump of dark matter lurking within the luminous halo of a well-known "Einstein ring." The mysterious object, the smallest of its kind ever seen, could help shed light on the universe's missing matter.
Satellites detected strange gravity signal coming from deep within Earth almost 20 years ago, study reveals
Researchers have discovered there was an anomaly in Earth's gravitational field between 2006 and 2008, potentially caused by a mineral shift deep within Earth's mantle. GRACE satellites detected a strange gravity signal at the time.
