A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is hidden in our solar system.

An Einstein Ring was discovered by the European Space Agency's Euclid space telescope in September 2023.

Mauna Kea is considered sacred to Native Hawaiians. It also happens to be ideal for space observatories. Now, a long running fight over the mountain's future may be coming to an end.

The first image from NASA's new space telescope is the deepest view of the universe ever captured. The picture is the farthest humanity has ever seen in both time and distance, closer to the dawn of time and the edge of the universe.

NASA's $10 billion new telescope will show the world something remarkable today: an image of some of the first galaxies to form in the universe.

For a long time, the Catholic Church rejected scientific findings that conflicted with its doctrine, even persecuting Galileo. Now the Vatican looks to promote its observatory as a bridge to science.

Scientists and engineers in California are building a unique 3.2 billion pixel camera for a telescope under construction in Chile. The camera has taken its first test pictures — of broccoli.