A few years ago, in a desert in Morocco, a very special meteorite was found. A rock unlike anything ever found on Earth, called NWA 7034, or colloquially ‘black beauty.’ Chemical analysis in 2011 found that it originated on Mars, but it was even unlike any other Martian meteorite discovered. The scientific community was extremely excited to determine its properties through a spectroscopic analysis, and today we have some answers that are as amazing as we expected. A new paper detailing spectroscopic results of the meteorite reveal that its composition is the same as the composition of the dark Martian...
Enjoy this great little video about an asteroid hit as viewed by a dinosaur on ancient Earth. The one in the video is 10Km wide and it’s the size of the one that killed the dinosaurs at the end of the Cretaceous-Paleogene period 66 Million Years ago. For reference, the Asteroid BL86 that passed by us this week was 300Km wide, a true killer! Sadly there’s no explosion, but hey, if we were able to see it we would be instantly vapourized so we wouldn’t be watching it anyway.
It seems that in recent years, asteroids have been flying past Earth with increasing frequency. Does it mean that more asteroids are coming around? Is it the beginning of the end? Will one of them hit us soon and doom us all? Probably not, but there’s always a chance. It’s almost certain that the reason we’ve been able to find so many new asteroids, and especially near-Earth asteroids, is because of the technology increase in Astronomy the past few years. New telescopes and tracking methods exist with the sole purpose of finding near-Earth asteroids, somewhat of an early warning system...
When a large meteorite collides with the Earth, it can be travelling upwards of 40 Kilometres per second. This collision releases a huge amount of energy, which can vaporize rocks and create interesting and unique geological structures. For decades, scientists have been debating the existence of a rare type of crystal called Lonsdaleite, which is associated with impacts. Strange small crystals were discovered in Arizona in the 1950s around an ancient impact crater called ‘Canyon Diablo.’ It led some scientists to believe that the mineral had mechanical properties similar to diamond, but that it was structurally superior. If it existed in a pure form...
It’s been a week since the historic landing of Philae on the comet 67P/Churyumov-Gerasimenko, and the data keeps coming in. As an Astronomy communicator, I’m always looking for great visual aids in my Astronomy in Action Shows. They are more valuable to me than any piece of written news because they illustrate a concept quickly and efficiently. A picture truly is worth a thousand words. But audio and video can be worth even more! Recently an image of the Philae landing was released, showing two images approximately 2 minutes apart. This image gives a 3-Dimensional perspective of the comet as the...
