Back to Triton? Proposed Mission Would Return to Neptune’s Exotic Largest Moon

Neptune’s largest moon Triton as seen by Voyager 2 in 1989. The proposed Trident mission would be the first to return to this bizarre world in over three decades. Photo Credit: Credit: NASA/JPL/USGS

Much of the outer Solar System has now been visited by robotic spacecraft from Earth, including the gas and ice giants […]

Voyager 2 to Enter 11-Month 'Quiet Mode' During Deep Space Network Upgrades

The 70-meter-wide (230-feet-wide) radio antenna at the Deep Space Network’s Canberra site in Australia. It is the only antenna that that communicate with Voyager 2 from the southern hemisphere, and will be undergoing crucial upgrades for 11 months beginning in March. Photo Credit: NASA/Canberra Deep Space Communication Complex

With so many space missions currently exploring […]

NASA's Juno Probe Finds Out How Much Water Jupiter Really Has

Stunning view of Jupiter from the Juno spacecraft. Photo Credit: NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstäd/Seán Doran © CC NC SA

Jupiter is not known as a water world since it has no oceans, lakes or other kinds of liquid water or ice. It doesn’t even have a solid surface beneath its deep, turbulent atmosphere. But there is […]

'You Didn't Prepare Me': Remembering America’s Galileo Mission to Jupiter, 30 Years On (Part 2)

Aerial view of Atlantis’ rise to orbit on 18 October 1989, 30 years ago this week. Photo Credit: NASA

Thirty years ago, this week, shuttle mission STS-34 and the crew of Atlantis roared aloft from Pad 39B at the Kennedy Space Center (KSC) in Florida to deliver NASA’s Galileo spacecraft onto the first leg […]

'Nothing Absurd': Remembering America's Galileo Mission to Jupiter, 30 Years On (Part 1)

Mounted atop its Boeing-built Inertial Upper Stage (IUS), Galileo parts company from Space Shuttle Atlantis on the evening of 18 October 1989. Photo Credit: NASA

When the Galileo spacecraft drifted out of Space Shuttle Atlantis’ payload bay on the evening of 18 October 1989—30 years ago this week—to begin the first leg of its […]

NASA's James Webb Space Telescope Now Fully Assembled for 2021 Launch

View od the fully assembled James Webb Space Telescope. The sunshield and unitized pallet structures (UPSs) that fold up around the telescope for launch, are partially deployed to enable telescope installation. Photo Credit: NASA/Chris Gunn

NASA’s James Webb Space Telescope (JWST) just took another big step towards completion, as the two halves it was […]

Wild World: Remembering Voyager 2's Encounter With Neptune, 30 Years On (Part 3)

The Great Dark Spot and Bright Companion, together with the chevron-like “Scooter” are visible in this Voyager 2 image of Neptune. Photo Credit: NASA

READ Part 1 and Part 2 of AmericaSpace’s Neptune 30th anniversary commemorative feature.

Thirty years ago this weekend, NASA’s Voyager 2 spacecraft swept silently above Neptune’s royal-blue cloud-tops and […]

Back to Europa! NASA Confirms Next Phase of Mission to Ocean Moon

Artist’s concept of Europa Clipper during a flyby of Europa. Image Credit: NASA/JPL-Caltech

NASA’s next mission back to Jupiter’s moon Europa just took another big step towards reality. The next phase of Europa Clipper has been confirmed, giving the go-ahead for the mission to proceed to final design, construction and testing.

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To Keep Boldly Going: NASA's New Plan for the Voyager Mission

Artist’s concept of one of NASA’s Voyager spacecraft, including the location of the cosmic ray subsystem (CRS) instrument. Image Credit: NASA/JPL-Caltech

With all of the current and recent planetary missions throughout the Solar System, it may be easy to forget sometimes that there are still some older spacecraft that have been traveling for decades […]

New Horizons' Data of Pluto/Charon Show Rarity of Small Kuiper Belt Objects

Pluto’s largest moon, Charon, as seen by New Horizons in 2015. The lack of smaller craters -less than expected – suggests that small objects less than a mile in size are rare in the Kuiper Belt. Photo Credit: NASA/JHUAPL/SwRI/Alex Parker

The Kuiper Belt is a vast region of rocky debris in the outer Solar […]