The NASA/ESA Hubble Space Telescope, in collaboration with several other ground- and space-based telescopes, has captured a galaxy being ripped apart by a galaxy cluster's gravitational field and harsh environment. The finding sheds light on the mysterious process by which gas-rich spiral-shaped galaxies might evolve into gas-poor irregular- or elliptical-shaped galaxies over billions of years.

What will happen to Planet Earth in a few billion years?

Getting a good look at the Sun - from Galileo's time to today.

Scientists discuss the Sun's destiny.

Plotting a trip to the outer planets.

With brilliant design and hard work, the Rover engineers create a robotic wonder to explore Mars.

How do you get a Rover to Mars? Here's the trip from launch to touchdown.

Looking back at the dramatic first landing on Mars.

Astronomers remember Magellan's astounding photos of Venus.

A look back at Voyager II's incredible images of Saturn.