NASA’s First Fallen: Remembering the Tragedy of Apollo 1

This is a reprint of a post from 2013, updated for the 2016 date. Today marks the 49th anniversary of one of the worst tragedies to befall NASA and human spaceflight: the fire that broke out in the Apollo 204 (later renamed Apollo 1) command module during a test exercise at Kennedy Space Center in…

Opportunity Marks 12 Years of Roving Mars

NASA’s Curiosity rover may be getting all the attention on Mars these days but the real overachiever is Opportunity — it’s been busy exploring, studying, and traveling across the planet’s surface for over 12 years now and still going strong! Launched July 7, 2003, the rover is currently in its 4,270th sol — 4,180 past…

The Old Charon in the New Charon’s Arms

An image like this could only be captured by an observer who’d traveled the 3.2 billion miles to take it beyond the orbit of Pluto! Luckily for us, in July 2015 we had exactly that: the New Horizons spacecraft, which had spent the previous nine and a half years soaring across the Solar System.

This Giant Ice Volcano on Pluto is All Wright

This bumpy wrinkled pucker is actually an enormous ice volcano — i.e., a cryovolcano — on the surface of Pluto, imaged by the passing New Horizons spacecraft on July 14, 2015. Informally called Wright Mons, the feature is about 90 miles (150 km) across and 2.5 miles (4 km) high, about as high as some of the tallest…

Planetkiller Presents New Evidence for “Planet X”

A planet-killing astronomer is now attempting to introduce a new world into the Solar System. Self-professed “Pluto killer” Mike Brown — the Caltech professor and astronomer whose discovery of Eris in 2005 prompted the reclassification of what constitutes a full-fledged planet, thus knocking Pluto from the list a year later — is now offering up evidence for the existence of a “real” ninth…

Astronaut’s Green Thumb Grows the First* Flower in Space

Say hello to the first* flower unfurled in space! This picture, shared on Jan. 16, 2016 by NASA astronaut Scott Kelly, shows a plant that has – thanks to some TLC from Kelly – managed to produce the first-ever zinnia blooms in low-Earth orbit and in fact the first flower grown outside of Earth’s biosphere. (Edit: read disclaimer below.)

And the Award for Leading Trojan Moon Goes To…

Drumroll please… the little moon Telesto! (You like it, you really like it!) This image, captured by Cassini on Jan. 14, 2016, shows Saturn’s moon Telesto – a “leading trojan” of the much larger satellite Tethys. A trojan moon is one that orbits a parent body within the same path as a more massive satellite,…

It’s Officially 2016 and Officially Time for a New Calendar

If you just looked at your calendar and realized you’re literally out of days (Happy New Year!) then it’s way past time to get yourself a new one. And if you love space, these are the ones you’ll want. Produced by Starry Messenger Press in conjunction with The Planetary Society, the 2016 Year in Space calendar…

A Craterful of Cracks

Here’s a view of a section of a crater on Mars filled with a lacework of bright spidery fractures, acquired on Sept. 20, 2015 with the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter. The crater is approximately 3 miles (5 km) wide and located in Mars’ north polar region, and its old, infilled interior has undergone countless millennia…

Plutonium is Back on the Menu, Future NASA Missions!

While I highly advise against humans making a meal out of it (despite my headline) the radioactive element plutonium has long been a staple energy source for many of NASA’s space missions, from Apollo’s ALSEPs to the twin Voyagers to the Curiosity rover.* But the particular non-weapons-grade flavor that NASA needs — plutonium dioxide, aka Pu-238 — has not been…

Cassini Has Made Its Last Pass by Enceladus. Here Are the Pictures.

After nearly eleven and a half years in orbit around Saturn the Cassini spacecraft has made its last-ever targeted flyby of Enceladus, the 320-mile-wide moon of Saturn that has intrigued scientists and the public alike with its active water ice geysers for more than a decade since their discovery. On Saturday Dec. 19, 2015, Cassini performed its E-22…

Is This New Picture of Earth From the Moon for Real? Yes, Yes It Is.

Today NASA released an amazing image of Earth taken from the Moon — specifically from lunar orbit by NASA’s Lunar Reconnaissance Orbiter, which has been studying our Moon since the summer of 2009. In it our planet appears as an incredibly bright blue globe with swashes of white clouds and Africa and northeastern South America clearly visible…