Down here on the surface, the planet's mass drags on time and slows it down in small measures. We call this effect gravitational time dilation. According to Einstein's theory of general relativity, gravity is a
Because gravity depends upon mass, you might think that most of a galaxy's mass would lie in the galactic disk or near the center of the disk. However, by studying the rotation curves of the Milky Way and other galaxies, astronomers have concluded that most of the mass lies in the ...
On February 8, 2022, approximately 40 of the 49 Starlink satellites were reported to have lost altitude, leading to atmospheric re-entry. SpaceX reported that the orbital decay on Starlink satellites was considered to be linked to a geomagnetic storm tha
This law states that every particle in this universe is attracted by every other particle present by a force, the magnitude of which depends upon the masses of the two particles and the distance between the two of them.Answer and Explanation: The force of gravity of an unknown planet ca...
The key thing with the Dark Big Bang is that it predicts dark-matter particles that don’t interact at all (other than via gravity), which would rule out axions and WIMPs. Building on this, two researchers at Colgate University in New York have shown that dark-matter particles that formed...
Opposite poles attract each other while like poles repel each other. Magnetic and electrical fields are related, and magnetism, along with gravity and strong and weak atomic forces, is one of the four fundamental forces in the universe. But none of those facts answers the most basic question:...
“Hunt for Galactic Fossils,” an ambitious research project she’d recently led as an undergraduate at the University of Pennsylvania. By measuring the composition, temperature, and surface gravity of a huge number of stars, she’d been able to pick out 689 of them that don’t look like ...
gravity. even though time is such a fundamental part of our experience, the basic laws of physics don’t seem to care in which direction it goes. for example, the rules that govern the orbits of planets work the same whether you go forward or backward in time. you can play the motions...
C.No sun can be seen in the sky on the Moon.D.A full day of the lunar time is much too long.(3)What would ESA do in the future according to Bernhard? AA.It would set up working time systems on other planets.B.It would work with other countries to explore the...
Mass of Planets:The most accurate way of measuring mass of a planet is to send a spacecraft to it and measure the acceleration due to gravity as the spacecraft passed by it. Alternatively, if the planet has a moon, then it's mass can be calculated from the moon's...