Sometimes asteroids aren’t always what they seem. Such is the case with the asteroid Phaethon, which also happens to be the source of a well-known meteor shower in December. As it turns out, Phaethon isn’t an asteroid at all — it’s a comet. But don’t think it’s as cut-and-dried as that… Phaethon isn’t the “dirty…
Tag: space
Saturn’s Atmosphere is More Varied Than it Looks, With Tropical “Jungles” and Ammonia “Deserts”
Saturn might look like a placid beige ball in backyard telescopes but in reality it has very dynamic weather patterns and climates, rivaling the storms of Jupiter and the varied climates of Earth, based on long-term microwave observations by the Cassini spacecraft. (Yes, microwaves are good for much more than heating up your coffee.)
Alan Friedman on Photographing the Sun
I’ve featured many of Alan Friedman’s amazing photos of the Sun here on Lights in the Dark, starting from the very first one I came across via the venerable Astronomy Picture of the Day (APOD) in November 2009. I’ve even featured Alan’s work in several articles I’ve written for National Geographic News, Discovery News, and Universe…
No, this isn’t a shot from the film “Gravity” (but it could be)
I could say “how have I never heard of this!?” but the truth is I wasn’t blogging about space in February 2006 when this image was taken. Still, it’s no less incredible to watch! But if you’re not already familiar with this, it may not be exactly what you think…
What Does the Moon Smell Like?
The Moon may not have any air to breathe, but it does have a very thin exosphere — a diffuse layer of molecules held by gravity above its surface that sometimes traps some of the very fine lunar dust in suspension via electrostatic activity. (In fact this very evening, at 11:27 pm EDT, Sept. 6,…
Titan’s Misty Mountains May Have “Roots As Nobody Sees”
It’s been thought for some time that Saturn’s largest moon Titan has a complex internal structure consisting of multiple layers of ice and liquid water. At one point it was even suggested that there are water ice “cryovolcanoes” on Titan, where watery slush oozes to the surface and freezes solid in the moon’s 270-degree-below temperatures,…
A Cosmic Quotation Mark? No, It’s Just Another Moon of Saturn
What looks like a single open-quote (or backwards comma) is really Saturn’s two-toned moon Iapetus, seen here in RGB composite color made from raw images acquired by Cassini on Aug. 30 from a distance of about 1.5 million miles. With a leading side stained a dark reddish hue and a trailing side bright white, the…
Want to know where we landed on the Moon? This cool vintage NASA map shows you:
Apollos 11, 12, 14, 15, 16, and 17 all successfully delivered men to the Moon between the summer of ’69 and December 1972 (and yes, they most certainly did happen) but do you know where on the lunar surface they each landed? This awesome vintage map from NASA points each site out (and is a…
This is the World Waving at Saturn
On July 19 did you wave at Saturn as Cassini was aiming its camera back our way? If you did (and if you sent a photo of you waving to JPL, like I did) you’re in this awesome new image, a compilation of 1400 submitted photos from assembled into a mosaic of Earth, a planet-wide…
Saturn and Titan Together
Here’s a particularly nice view of Saturn backlit by the Sun, captured by Cassini while on the ringed planet’s night side on August 12, 2013. Titan is visible at the upper right, its thick atmosphere scattering sunlight into a nearly-complete ring around it. The color-composite above was assembled from raw images captured in red, green,…
The Frightful Fallacy of “False Color”
I rarely ever reblog posts, but this is an excellent criticism on the term “false color” and its oft-maligned perception by the modern public, and also a support of coloration techniques used in astronomy to produce the beautiful — and scientifically valuable — space images we have all come to enjoy (and expect!) By Dr….
Meteor Strike: Can We Spot The Next Big Asteroid in Time?
On the morning of February 15, 2013, around 9:26 a.m. local time, the sky above the Siberian town of Chelyabinsk was sliced by a bright streak of light, ending in a flash brighter than the Sun and sending glass-shattering shockwaves thundering across the region several minutes later, breaking windows and injuring over 1,000 people. The…
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