Sep 25, 2025 · The answer is gravity: an invisible force that pulls objects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall. An animation of gravity at work. …

Sep 25, 2025 · What Is Gravity? Gravity is the force by which a planet or other body draws objects toward its center. explore What Is a Black Hole? Space Place in a Snap tackles this fascinating …

Jun 27, 2019 · Why Are Planets Round? The Short Answer: A planet is round because of gravity. A planet's gravity pulls equally from all sides. Gravity pulls from the center to the edges like the spokes …

Sep 25, 2025 · Before this, just about everything we knew about the universe came from studying waves of light. Now we have a new way to learn about the universe—by studying waves of gravity. …

Aug 29, 2022 · What Is a Black Hole? The Short Answer: A black hole is an area of such immense gravity that nothing -- not even light -- can escape from it.

Aug 29, 2022 · Bits of this material clumped together because of gravity. Big objects collided with bigger objects, forming still bigger objects. Finally some of these objects became big enough to be …

Sep 25, 2025 · Interstellar space begins where the sun’s magnetic field stops affecting its surroundings. Space Place in a Snap tackles this fascinating question! Galaxies, nebulae, and supernova remnants …

Sep 25, 2025 · Satellites that orbit close to Earth feel a stronger tug of Earth’s gravity. To stay in orbit, they must travel faster than a satellite orbiting farther away. The International Space Station orbits …

A planet is round because of gravity. A planet's gravity pulls equally from all sides. Gravity pulls from the center to the edges like the spokes of a bicycle wheel. This makes the overall shape of a planet a …

Sep 25, 2025 · When light from distant stars passes through a galaxy or cluster, the gravity of the matter present in the galaxy or cluster causes the light to bend. As a result, the light looks like it is coming …