Discover the presence and forms of water in space, from icy moons like Europa to Mars' ice caps and star-forming vapor regions.
Discover Pluto's tiny angular size from Earth, ranging between 0.06 and 0.11 arcseconds, and the challenges it poses for telescopic observation.
Discover how Pluto's low gravity lets you jump about 7.5 meters if you can jump 1 meter on Earth, due to its 1/12th gravity strength.
Discover how Jupiter's angular size changes from 29.8 to 46.9 arcseconds and why this matters for astronomical observations.
Learn about Methuselah, the oldest planet at 12.7 billion years old, and its significance in understanding the universe's history.
Learn about the European Space Agency (ESA), Europe’s answer to NASA, and its role in space exploration.
Learn about Earth's exact location in our Solar System, including its distance from the Sun.
Discover if a gamma-ray burst can vaporize a planet and the scientific implications behind it.