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Rising Rainbow

Aysun Ülger is, like me, someone who loves atmospheric optical phenomena. Halos, glories, aurorae, iridescent clouds … so much so she created a Facebook page where she collects such photos. She just started it, but there are already a few lovely examples there. And this includes, of course, rainbows. Show More Summary

Touching down on Mars could still be a far-off prospect

Landing on the Red Planet may remain a distant dream for now, despite ambitious plans by aerospace companies to take people there in the next decade

A Crash Course in Transgender Sensitivity

On Thursday, April 23, 2015, the 14 th episode of Crash Course Astronomy went live. It’s about our sister planet Venus, and I spent quite a bit of time talking about just how infernally inhospitable it is. Just as I have with every other episode, I had a lot of fun writing and recording it. Show More Summary

Will Ted 2 Deliver?

Hopefully bringing some laughs to the summer season this June Film ted Ted 2 Seth MacFarlane

Vinyl Still Going Strong in the Marketplace

Sales are up 260% since 2009 Trending vinyl albums cassette tapes Alice Cooper

A few gems from the latest Cassini image data release

I checked out the latest public image release from Cassini and found an awesome panorama across Saturn's rings, as well as some pretty views looking over Titan's north pole.

New Horizons One Earth Message

The One Earth Message Project is going to send a message to the stars, and we invite members of the Planetary Society to join us in this historic endeavor.

LightSail Readiness Tests Prepare Team for Mission Operations

The LightSail team continues to prepare for the spacecraft's May test flight with a series of readiness simulations that mimic on-orbit operations.

Crash Course Astronomy: Venus

There but for the grace of physics goes us: Venus, second rock from the Sun, could be said to be Earth’s twin… but it’s the evil one. Find out why on this week’s episode of Crash Course Astronomy! I love the fact that you can learn all...Show More Summary

Happy birthday Hubble, 25 today! Look back to where it all began

The Hubble Space Telescope has produced some fabulous images over the past 25 years – and this is the mirror that made them all possible (eventually)

Can nuclear waste help humanity reach for the stars?

With the shortage of plutonium-238 to power space missions, Europe has decided to focus on an accessible alternative material that could power future spacecraft: americium-241.

Biggest dark matter detector lies in wait for antisocial WIMPs

The world's most sensitive dark matter detector is poised to join the hunt for WIMPs, the world's most elusive particles

Slamming the Door Shut: Vaccines and Autism

Let’s start this off by being very clear: Vaccines don’t cause autism. They just don’t. Perhaps I should be scientific, careful, technical, and say that no connection between vaccines and autism has ever been found. That’s technically...Show More Summary

Joss Whedon Loved Edgar Wright's Vision For Ant-Man

What coulda, shoulda, woulda been Comics Ant-Man Edgar Wright Joss Whedon Avengers Age of Ultron

Metallica Audio Cassette a Big Hit on Record Store Day

The format wasn't exactly state of the art Music Metallica No Life Til Leather Record Store Day

Falling meteor may have changed the course of Christianity

The early evangelist Paul became a Christian because of a dazzling light on the road to Damascus, but one astronomer thinks it was an exploding meteor

25 Years of Cosmic Treasures: Hubble’s 12½ Greatest Hits

On April 25, 1990, the world—the Universe—changed. That was the day the crew of STS-31 deployed the Hubble Space Telescope into orbit. This magnificent observatory has a special place in my heart. When it launched I was in graduate school in astronomy, and had just received my master’s degree. Show More Summary

Geomagnetic Alert (22 April, 2015)

A geomagnetic alert has been issued by the Australian IPS for the 22nd (yes tonight) to possibly the morning of the 23rd due to a high speed solar wind stream from a coronal hole. Geomagnetic activity is rated at "Unsettled to Active,...Show More Summary

The 2015 Australian Lyrid Meteor Shower, Morning 23 April

The morning sky looking north as seen from Brisbane at 5:00 am AEST on April 23. The Lyrid radiant is marked with a yellow cross. Similar views will be seen elsewhere at an equivalent local time. The radiant will be higher in northern Australia, and lower in southern Australia (click to embiggen). Show More Summary

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