Print these wonderful NASA Space Place Valentine's Day cards and give them to family and friends!

Interact with the entire solar system as you control space and time.

Among our discoveries about Mars, one stands out above all others: the possible presence of liquid water on Mars, either in its ancient past or preserved in the subsurface today.

PlanetQuest's list of "candidate exoplanets" comes from the Kepler mission. Kepler has made thousands of likely exoplanet discoveries, but in order for each planet to be considered "confirmed", its existence has to be verified using other instruments, a process that takes time.

What is an infographic? As we see it, an infographic is artwork for your brain. It is a way of taking numbers, spreadsheets and all types of other highly technical data and combining it with interesting images and turning it into a one-page, easily digestible, fun-to-look-at graphic.

Earth system science is the study of how scientific data stemming from various fields of research, such as the atmosphere, oceans, land ice and others, fit together to form the current picture of our changing climate. Climate scientists separate factors that affect climate change into three categories: forcings, feedbacks, and tipping points.

The Universe is continually radiating a wealth of information to Earth, sending signals in wide-spectrum of light. However, not all of these messages reach the ground. Because our planet's atmosphere blocks most radiation coming in from space, humans need to launch telescopes beyond it to get a complete cosmic picture.

Learn how we collect critical data about Earth's atmosphere, land and oceans.

PlanetQuest's list of "candidate exoplanets" comes from the Kepler mission. Kepler has made thousands of likely exoplanet discoveries, but in order for each planet to be considered "confirmed", its existence has to be verified using other instruments, a process that takes time.

Search our publicly released images from various JPL missions, spacecraft, the Solar System and beyond.

PlanetQuest's list of "candidate exoplanets" comes from the Kepler mission. Kepler has made thousands of likely exoplanet discoveries, but in order for each planet to be considered "confirmed", its existence has to be verified using other instruments, a process that takes time.

The solar system consists of a central star, the Sun, and all of the smaller celestial bodies that continuously travel around it. The smaller bodies include eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, which are themselves orbited by more than 140 moons. In addition, the solar system contains millions of rocky asteroids and billions of icy comets as well as giant clouds of dust and gas.

Explore a 3D simulation of all planets that have been discovered around other stars.

In 1998, The NASA Near-Earth Object Program Office was established at JPL to coordinate NASA-sponsored efforts to detect, track and characterize potentially hazardous asteroids and comets that could approach the Earth. The primary computational activities of this Office involve the continuous (and largely automatic) use of new data to update the orbits of Near-Earth objects so that their future orbital paths can be examined for close Earth approaches.