Karl Tate

Triton's surface is so cold, the ground is made of frozen nitrogen.

Titania, an airless moon of Uranus, is cold and its day is 84 years long. See what it would be like for astronauts on Titania in this Space.com infographic.

Titan is probably the least inhospitable place in the outer solar system, but remember to bring oxygen and warm clothing.

A constellation of four satellites orbit through Earth's magnetic field to study the mysterious phenomenon called magnetic reconnection.

NASA's Dawn spacecraft is getting humanity's best view yet of the tiny survivor from the solar system's earliest days. See what we know about the dwarf planet Ceres in this our infographic.

Albert Einstein's General Theory of Relativity celebrates its 100th anniversary in 2015. See the basic facts of Einstein's relativity in our infographic here.

Scientists believe conditions may be right for life, under Europa's icy crust.

Ceres, orbiting between Mars and Jupiter, has almost no gravity, warmth or atmosphere.

Mars would not be an easy home for human colonists. See how its lower gravity, thin atmosphere and lack of a magnetic field could make it challenging for a colonist in this Space.com infographic.

Life on the moon would be very different for explorers than life on Earth. See how in this Space.com infographic.

ESA's tiny suborbital testbed vehicle could pave the way for later orbital space planes.

Crushing atmospheric pressure and temperatures of hundreds of degrees make survival on Venus rather challenging. Find out why in our infographic.

Conditions on the planet Mercury would make living there a challenge. See what the days and nights might be like on the closest planet to the sun in our infographic.

SMAP, or the Soil Moisture Active Passive satellite, will measure groundwater content and frozen/thawed state, all over the world every three days.

In a first for space flight, SpaceX will attempt to fly its Falcon 9 booster rocket to a safe landing aboard an offshore platform.

Although methane had been discovered before from space, NASA's Curiosity rover made the first in-situ discovery of rapid changes in methane concentration from the surface of Mars.

The second in the Hayabusa series will drop probes on and take samples from asteroid 1999 JU3.

When the Philae attempted touchdown on comet 67P, it bounced off with nearly enough force to drift away into space.

The European Rosetta spacecraft's Philae lander aims to be the first probe ever to safely land on a comet. Here's how to land on a spinning ice mountain in space.

In the film 'Interstellar,' astronauts use a variety of spacecraft to cross the universe and explore alien worlds. See how they work in this Space.com infographic.

Virgin Galactic's first SpaceShipTwo spacecraft broke apart in mid-flight on Oct. 31, 2014, killing one pilot and injuring another. See the sequence of events as determined by the NTSB.

NASA's plan is to bring a distant asteroid nearer to Earth, but a competing idea would send humans to one or more asteroids in their native orbits.