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 […]

Camera on Hubble Space Telescope Currently Offline Due to Hardware Problem

The Hubble Space Telescope in orbit. Photo Credit: NASA

NASA has temporarily suspended operations of Wide Field Camera 3 on the Hubble Space Telescope due to a hardware problem, it was reported yesterday.

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Hubble Space Telescope Enters Safe Mode After Gyro Failure

The Hubble Space Telescope. Image Credit: NASA

Update – October 8, 2018: NASA has released a statement about the situation with Hubble.

“NASA is working to resume science operations of the Hubble Space Telescope after the spacecraft entered safe mode on Friday, October 5, shortly after 6:00 p.m. EDT. Hubble’s instruments still are […]

Hubble and Kepler Telescopes May Have Just Found The First Exomoon, 8000 Light-Years Away

Artist’s concept of what the Kepler-1625b planet-moon system might look like. Image Credit: Dan Durda

Exoplanets – planets orbiting other stars – have been found by the thousands now, with many more to come. But what about exomoons? So far there haven’t been any confirmed yet, and they are much more difficult to […]

New Evidence For Water Vapor Plumes on Europa Discovered In Old Galileo Mission Data

Illustration of the Galileo probe at Europa in 1997, and how the plume disrupted the moon’s magnetic field. Image Credit: NASA/JPL-Caltech/Univ. of Michigan

For decades, Jupiter’s moon Europa has fascinated scientists and the public alike after it was learned that a global water ocean lies beneath the icy crust. Could there be life […]

First Exomoon Found? Astronomers Optimistic But Urge Caution

Artist’s conception of a large Earth-like exomoon orbiting a giant gaseous exoplanet. Image Credit: Avatar/20th Century Fox

Exoplanets are being found so frequently now that they have become commonplace. But what about exomoons? As might be expected, they are much harder to detect, being typically much smaller than most planets. There have been […]

New Moon Discovered by Hubble Orbiting Third Largest Dwarf Planet in Kuiper Belt

Two images of dwarf planet 2007 OR10 from Hubble, taken a year apart, showing the small moon. Image Credit: NASA/ESA/C. Kiss (Konkoly Observatory)/J. Stansberry (STScI)

Moons are exceedingly common in the Solar System – Jupiter alone has 67! But smaller planets do as well of course, except for Mercury and Venus, and even […]

James Webb Space Telescope Arrives at Johnson Space Center for Cryogenic Testing

The giant 18-piece mirror of the James Webb Space Telescope, inside the cleanroom at Johnson Space Center. Photo Credit: NASA/Chris Gunn

Often referred to as the successor for Hubble, the James Webb Space Telescope (JWST) is one of the most highly anticipated space telescopes ever built. A large infrared telescope with a 6.5-meter […]

First Science Results from Juno Show Surprises in Jupiter's Atmosphere and Interior

Newly-released, enhanced color view of Jupiter’s south pole from Juno as seen on Dec. 11, 2016. The image was taken from an altitude of about 32,400 miles (52,200 kilometers) above the planet’s beautiful cloud tops. Image Credit: NASA/JPL-Caltech/SwRI/MSSS/Gabriel Fiset

There has been a lot of attention given to the Cassini mission at Saturn […]

'Masterful Performances': 15 Years Since Columbia's Last Fully Successful Mission (Part 2)

Columbia roars into the pre-dawn darkness on 1 March 2002, beginning her final wholly-successful mission. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Rising into the pre-dawn darkness on 1 March 2002—15 years ago, next week—Space Shuttle Columbia’s 27th mission into low-Earth orbit would achieve, literally, the greatest heights of her storied career. In more […]