HD - NASA's Jet Propulsion Laboratory

Sometimes light just gets in the way. A look at two technologies that block starlight to give telescopes a better view of distant Earth-like planets.

Radar data of comet P/2016 BA14 taken over three days (March 21-23, 2016), when the comet was between 2.5 million miles and 2.2 million miles (4.1 million kilometers and 3.6 million kilometers) from Earth.

NASA's Mars Reconnaissance Orbiter has clocked more than a decade of service at the Red Planet and has yielded scientific discoveries and magnificent views of a distant world. These images taken by MRO's HiRISE camera are not in true color because they include infrared information in order to be optimized for geological science.

A colorful animation shows a simulated flight over the surface of dwarf planet Ceres, based on images from NASA's Dawn spacecraft.

What's Up for January? A meteor shower, a binocular comet, and the winter circle of stars!

What's Up for January? A meteor shower, a binocular comet, and the winter circle of stars!

Curiosity performs the first investigation of active sand dunes on another planet. Studying the Bagnold Dunes on Mars will help scientists understand the physics of Martian dunes and how they move.

Curiosity performs the first investigation of active sand dunes on another planet. Studying the Bagnold Dunes on Mars will help scientists understand the physics of Martian dunes and how they move.

Dwarf planet Ceres is shown in these false-color renderings, which highlight differences in surface materials. Images from NASA's Dawn spacecraft were used to create a movie of Ceres rotating, followed by a flyover view of Occator Crater, home of Ceres' brightest area.

Honey, I shrunk the satellites! Mini-satellites are following in the footsteps of cell phones and computers. CubeSats are small but highly capable of performing a variety of space missions.

View Mars this month, and get a preview of great Mars views in 2016, the best since 2005!

As we honor the retirement of Director Charles Elachi, we look back at the JPL achievements of the past 15 years.

Earth's land and ocean currently absorb about half of all carbon dioxide emissions from the burning of fossil fuels, but it's uncertain whether the planet can keep this up in the future. NASA's Earth science program works to improve our understanding of how carbon absorption and emission processes work in nature and how they could change in a warming world with increasing levels of emissions from human activities.

See all the phases of the moon, by day and by night! Find out why the same side of the moon always faces the Earth, and look for the areas where all six of the Apollo missions landed.

JPL scientist Marina Brozovic explains how radar will be used to study asteroid 2015 TB145 when it safely passes Earth on Oct. 31, 2015.