Staring at the sun—a close (but safe ... Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free learning activities and ...

The Sun is a gigantic dynamo powered by hydrogen ... Voyagers 1 and 2 are on a one-way trip, sent forth to study the boundary between our solar system and interstellar space.

That faint risk of apocalypse—a 1-in-50,000 chance that the Earth will succumb to orbital chaos before the sun incinerates it—is our legacy of the solar system’s youth, when it turned inside ...

But what’s it like on other planets? There are eight planets in our solar system. The closest one to the sun is Mercury, then it’s Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

While most objects in our solar system orbit the same plane ... that this "something" was as large as a planet orbiting our sun. In fact, they even went so far to give it a name, Planet 9.

When the Sun sneezes, we can get sick ... and emphasized the importance of SDO in our solar early warning system. In a lot of ways, SDO has its roots in the earlier Solar and Heliospheric Observer ...

The robotic Cassini spacecraft which is now orbiting Saturn looked back toward the eclipsed Sun and saw a view ... into the deepest reaches of our solar system. These probes, unlike the Hubble ...

Faint signatures detected by the Canada France Hawaii Telescope have revealed 128 new moons around Saturn, making it the indisputable frontrunner for having the most moons in our solar system.

Planets' temperatures are largely influenced by their structural characteristics and proximity to the Sun, however, Venus ...