Sep 25, 2025 · Although humans can't hop into a time machine and go back in time, we do know that clocks on airplanes and satellites travel at a different speed than those on Earth.

Sep 25, 2025 · Why does NASA care about years on other planets? NASA needs to know how other planets orbit the Sun because it helps us travel to those planets! For example, if we want a …

Sep 25, 2025 · To choose the best type of power for a spacecraft, engineers consider where it is traveling, what it plans to do there and how long it will need to work. An illustration of the Cassini …

Mar 6, 2020 · This means the rover could study lots of different types of rocks without traveling very far. Engineers also liked the area because it seemed like a flat, safe place for Sojourner to land.

Sep 25, 2025 · NASA’s award-winning Space Place website engages upper-elementary-aged children in space and Earth science through interactive games, hands-on activities, fun articles and short …

Sep 25, 2025 · This seems really fast, but objects in space are so far away that it takes a lot of time for their light to reach us. The farther an object is, the farther in the past we see it.

Sep 25, 2025 · Image credit: NASA/University of Texas Center for Space Research GRACE detects tiny changes in gravity over time. These changes have revealed important details about our planet. For …

Sep 25, 2025 · The mission discovered packets of very hot material called "heat bombs" that travel from the Sun into the corona. In the corona, the heat bombs explode and release their energy as heat.

Sep 25, 2025 · Hubble travels about 5 miles per second. That is like traveling from the eastern coast of the United States to the western coast in 10 minutes! Hubble takes sharp pictures of objects in the …

Sep 25, 2025 · In July of 2015, a spacecraft named New Horizons arrived at Pluto after a long journey. It took amazing pictures of this dwarf planet and will continue to study other objects in the Kuiper Belt …