Cassini Enters 'Grand Finale' Phase of Mission and Solves a 'Bubbling Mystery' on Titan's Seas

Artist’s conception of Cassini’s final flyby of Titan on April 21. Image Credit: NASA/JPL-Caltech

This week marks another important milestone in the Cassini mission at Saturn – as of today, the spacecraft is conducting the last Ring-Grazing Orbit of its mission as it prepares for the Grand Finale, which will culminate in the death […]

Nearing the End: Cassini Prepares for Spectacular 'Grand Finale' Orbits at Saturn

Cassini is now entering the Grand Finale phase of the mission, which will end on Sept. 15, 2017, after the spacecraft plunges between the planet and rings 22 times. Image Credit: NASA/JPL-Caltech

NASA’s Cassini mission to Saturn has been one of the most successful and awe-inspiring ever, studying the giant ringed planet and its […]

First Breaks Seen in Treads on Curiosity Rover's Wheels, But the Journey Continues

MAHLI view on sol 1641 of two of the raised treads (grousers) on the left middle wheel of the Curiosity rover which recently broke, including the one seen partially detached at the top of the wheel. Photo Credit: NASA/JPL-Caltech/MSSS

As the Curiosity rover continues its traverse among the buttes and sand dunes of Gale […]

Venus Beckons Part 2: A New NASA Collaborative Mission With Russia?

Artist’s conception of the Venera-D spacecraft in orbit around Venus. Image Credit: NASA/JPL-Caltech

Last week, AmericaSpace reported on why NASA should return to Venus, and new technology being developed to help make that happen, especially as in longer-lived landers or rovers. With its extremely hostile conditions, Venus has been much less of a priority […]

Cassini Returns Stunning New Close-Up Images of Saturn's 'Ravioli' Moon and Rings

New image of Saturn’s tiny moon Pan, which orbits inside the Encke Gap of Saturn’s rings. A thin “skirt” or ridge of material surrounds the moon’s equator, giving it a “ravioli” or “dumpling” appearance. Photo Credit: NASA/JPL-Caltech/Space Science Institute/Ian Regan

NASA’s Cassini mission may be entering its last several months now, but that doesn’t […]

NASA's Spitzer Space Telescope Discovers Seven Earth-Sized Worlds Orbiting Nearby Star

Artist’s conception of standing on the surface of exoplanet TRAPPIST-1f. Image Credit: NASA/JPL-Caltech

The search for exoplanets – planets orbiting other stars – has been one of the most exciting developments in astronomy and space science in recent years. The first couple exoplanets were found in 1992, and now over 3,400 have been confirmed, […]

Juno Spacecraft to Remain in Same Orbit, But Science Observations of Jupiter Continue

Spectacular view of Jupiter’s south pole from Juno, taken on Feb. 2, 2017 at 6:06 a.m. PT (9:06 a.m. ET), from an altitude of about 62,800 miles (101,000 kilometers) above the cloud tops (enhanced color version). Image Credit: NASA/JPL-Caltech/SwRI/MSSS/John Landino

NASA’s Juno spacecraft has been orbiting the gas giant planet Jupiter since July 4, […]

Landing on an Ocean Moon: NASA Unveils New Plan to Search for Life on Europa

Artist’s conception of the proposed Europa lander, with sampling arm extended. Image Credit: NASA/JPL-Caltech

For decades now, Europa has beckoned – this moon of Jupiter which is frozen on the outside but hides a global ocean on the inside – has so far only been visited by spacecraft during brief flybys. Scientists and the […]

A Martian Paradox: Curiosity Rover Findings Raise New Questions About Water on Ancient Mars

View from Curiosity of the Yellowknife Bay rock formation. Drilled samples here and elsewhere provided evidence that this region used to be at the bottom of a lake, but also that there are little or no carbonate mineral deposits, which should have been produced if the carbon dioxide atmosphere was thicker and warmer billions […]

NASA's OSIRIS-REx Spacecraft to Search for Trojan Asteroids Near Earth

Artist’s depiction of OSIRIS-REx in orbit around Bennu. Currently, the spacecraft is searching for other Trojan asteroids near Earth. Image Credit: NASA

Asteroids are some of the most ancient objects in the Solar System, relics left over from the time when the planets first started forming and evolving. For this reason, scientists are very […]