NASA Celebrates End of Historic Spitzer Space Telescope Mission

Artist’s conception of the Spitzer Space Telescope. Image Credit: NASA/JPL

In just a few days from now, one of NASA’s greatest space telescope missions will come to an end. The Spitzer Space Telescope will cease operations on Jan. 30, 2020, after 16 years in service. The news was announced during a special live program […]

Picture of Santa: Remembering Discovery's Date With Hubble, 20 Years On (Part 2)

The STS-103 astronauts were the only Space Shuttle crew to celebrate Christmas in orbit, way back in 1999. Photo Credit: NASA

Twenty years ago, seven astronauts spent Christmas Day in space, peering from the windows of shuttle Discovery. STS-103 in December 1999 marked the only occasion in the shuttle program’s three decades of service […]

Power and Speed: Remembering Discovery's Date With Hubble, 20 Years On (Part 1)

Orbital sunrise causes the solar arrays of the Hubble Space Telescope (HST) to glisten in this spectacular view from STS-103. Photo Credit: NASA

Twenty years ago, as the world neared the dawn of a new millennium, the Hubble Space Telescope (HST) circled the globe in urgent need of servicing and repair. By December 1999, […]

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 […]