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 · Eek! Airplanes and satellites can experience changes in time! Read on to find out more. It all depends on what the spacecraft will do! Read on to learn more. A transit is when one object in …

Sep 25, 2025 · You can graph the time it takes to get to school each day, the number of pieces of pizza your friends can eat, and how many people like the color blue or green.

Sep 25, 2025 · Gravitational waves travel at the speed of light (186,000 miles per second). These waves squeeze and stretch anything in their path as they pass by. A gravitational wave is an invisible (yet …

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 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most …

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 · 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 …

Sep 25, 2025 · Light year: It’s not a year, or an amount of time at all. It’s the distance light travels in one year. It’s the same as 5,878,499,810,000 miles (or 9,460,538,400,000,000 meters). When things are …