Viking Remembered: Celebrating the 40th Anniversary of the First Search for Life on Mars

Painting of a Viking lander on Mars, prior to launch. Image Credit: Charles Bennett/Lockheed Martin (Martin Marietta)

Iconic painting of a Viking lander on Mars, prior to launch. The sampling arm reaches into the foreground. Image Credit: Charles Bennett/Lockheed Martin (Martin Marietta)

July 20, 1976, will be forever remembered by space enthusiasts. On that day, Viking 1 became the first U.S. spacecraft to land on another planet—in this case, Mars (the USSR Venera […]

Solar Probe Plus Mission Moves Closer to 'Touching the Sun' in 2024

Artist's conception of the Solar Probe Plus spacecraft near the Sun. Image Credit: NASA/JHUAPL

Artist’s conception of the Solar Probe Plus spacecraft near the Sun. Image Credit: NASA/JHUAPL

The Solar System is a busy place, with spacecraft currently visiting most of the planets as well as some dwarf planets and comets. Akatsuki is at Venus, several rovers and orbiters are at Mars, the Juno spacecraft just reached Jupiter, […]

Astronomers Image Massive Exoplanet in Triple-Star System

Artist's conception of the star system HD 131399, with the planet HD 131399Ab in the foreground. Image Credit: Credit:
ESO/L. Calçada/M. Kornmesser

Artist’s conception of the star system HD 131399, with the planet HD 131399Ab in the foreground. Image Credit:ESO/L. Calçada/M. Kornmesser

Over the past couple decades, astronomers have been discovering a seemingly endless variety of exoplanets orbiting other stars. Some are rather similar to planets in our own Solar System, while others are more like […]

NASA's Juno Spacecraft Enters Orbit Around Jupiter, the 'King of Planets'

Artist's conception of Juno approaching Jupiter. Image Credit: NASA

Artist’s conception of Juno approaching Jupiter. Image Credit: NASA

Jupiter has often been referred to as the King of Planets, and for good reason, as it is a massive gas giant, much larger than Earth and the largest planet in our Solar System. It is more than 2.5 times as massive as all the other […]

Does Pluto Have a Subsurface Ocean? New Research Says Probably

The discovery of huge faults on Pluto provides evidence for a possible liquid water ocean beneath the ice crust. Image Credit: NASA/JHUAPL/SwRI

The discovery of huge faults on Pluto provides evidence for a possible liquid water ocean beneath the ice crust. Photo Credit: NASA/JHUAPL/SwRI

So-called “waterworlds” have been found to be surprisingly common in the Solar System—small icy moons which have ice crusts but oceans of liquid water below the surface. These include Jupiter’s moons Europa and […]

Mars Rovers Update: Curiosity Turns Toward Mount Sharp, Opportunity Finishes in Marathon Valley

Self-portrait of the Curiosity rover at the drill site called Okoruso, on Naukluft Plateau. The image was taken on May 11, 2016, (sol 1,338). Image Credit: NASA/JPL-Caltech/MSSS

Self-portrait of the Curiosity rover at the drill site called Okoruso, on Naukluft Plateau. The image was taken on May 11, 2016, (sol 1,338). Image Credit: NASA/JPL-Caltech/MSSS

NASA’s current rovers, Curiosity and Opportunity, are continuing to explore their respective regions of Mars, with new findings that are providing yet more clues as to the geological […]

Back to the Moon? New House Bill Defunds NASA's Asteroid Redirect Mission

Artist's conception of the Asteroid Redirect Mission. The new House bill directs NASA to bypass this mission and return to the Moon instead, before going to Mars. Image Credit: NASA

Artist’s conception of the Asteroid Redirect Mission (ARM). The new House bill directs NASA to bypass this mission and return to the Moon instead, before going to Mars. Image Credit: NASA

Sending human astronauts to Mars is a dream shared by many, but there are still challenges to overcome and the question of just […]

New Horizons Obtains New Images and Science Data of Post-Pluto Kuiper Belt Object

Image from New Horizons showing the small KBO called 1994 JR1, taken in April 2016. Credits: NASA/JHUAPL/SwRI

Image from New Horizons showing the small KBO called 1994 JR1, taken in April 2016. Image Credit: NASA/JHUAPL/SwRI

The New Horizons mission to Pluto has been nothing less than incredible, giving us our first close-up views of this enigmatic dwarf planet and its moons. But the show isn’t over yet, as the New Horizons […]

New Worlds Galore: Kepler Space Telescope Confirms 1,284 More Exoplanets

Artist's conception of the many different exoplanets which have been discovered by Kepler so far. Image Credit: NASA/W. Stenzel

Artist’s conception of the many different exoplanets that have been discovered by Kepler so far. Image Credit: NASA/W. Stenzel

For several years now the Kepler Space Telescope, as well as other telescopes, has been discovering an increasing number of exoplanets, with over 2,000 such confirmed worlds found so far (and nearly 5,000 candidates). Today, NASA […]

Cassini Data May Help Locate 'Planet Nine' and Reveals Methane Fog on Titan

Artist's conception of the possible "Planet Nine," orbiting much farther from the Sun than even Pluto. Image Credit: Caltech/R. Hurt (IPAC)

Artist’s conception of the possible Planet Nine, orbiting much farther from the Sun than even Pluto. The Cassini spacecraft may be able to help find it. Image Credit: Caltech/R. Hurt (IPAC)

The Cassini spacecraft has been orbiting Saturn for many years now, studying the massive planet and its moons in unprecedented detail. Now, Cassini […]