The big dipper is visible every day of the year from the Northern Hemisphere. It’s easily recognizable and most people have spotted it at least once in their life. But most people also assume that it is just a boring collection of stars where nothing interesting ever happens. The big dipper is so much more than a simple spoon in the sky, especially right now. The well-known asterism, part of the much larger Ursa Major constellation, is home to many visible deep-sky objects, though right now it is visited by the comet C/2013 US10 Catalina, close to the visible binary...
Humans have lived in Space. And so have fruit flies, mice, monkeys, chimpanzees, guinea pigs, rabbits, frogs, reptiles, and a variety of plants. Now we can add a new life form to this list: Flowers. The first ever space flower was revealed recently, and it’s a yellow Zinnia. Scott Kelly has been aboard the International space Station (ISS) for over 300 days. It’s not an easy job, being away from loved ones, nature, and the rest of humanity, locked up with at most five other humans in a tin can that experiences a sunrise every 45 minutes. It messes with...
When were the planets discovered? Uranus and Neptune were definitely not found until modern science began, since a telescope was required to see them. The other five planets were not actually discovered per se. Since they are visible to human eyes, they have been observed since prehistoric times, and we see examples of cultures across the ancient world who observed them. The five visible planets are Mercury, Venus, Mars, Jupiter, and Saturn. Starting this weekend, you can see them all across one part of the sky, a visual alignment that hasn’t occurred since 2005. Planets are so-named because of the Greek...
Sadly no, this time we are NOT talking about Pluto. Astronomer Mike Brown from Caltech, heralded as the ‘man who killed planet Pluto’ has done some new work that might replace Pluto with a better fit for a true ninth planet, one that is ten times the mass of Earth. Now the only problem is finding it. But wait, if we haven’t seen it, how do we know it’s there? Well it certainly showcases the power of science, that an understanding of the true laws of nature can give us incredible predictive power. It started out as a ‘that’s strange’...
When you think of a nebula forming stars, it’s hard to imagine how large it is. Most nebulae form hundreds or even thousands of stars before being blown away by the young stellar winds. Pockets of a nebula collapse into dense regions that will eventually become stars with surrounding planetary systems. There are places in the galaxy we can look and actually see it happening. Pictured above, the beautiful ‘running chicken’ nebula, as strangely named as it is, is in the later stages of it’s star forming life. Many bright young stars have formed and their intense radiation is now...
We just saw it. Another record breaker. This incredible explosion of a massive dying star is the brightest supernova ever observed. You may think you get how big this explosion was, but it was brighter than collective brightness of all the 400 Billion stars in the Milky Way. You may be asking why you can’t see it in the sky. Well even though it is incredibly bright, it is 3.8 Billion light years away in a distant galaxy, so the discovery needed a huge telescope. It may have been powered by a rare star called a magnetar, a star with such an...
Cryovolcano is a cool word, literally and figuratively. You hear about it a lot when talking about solar system moons like Enceladus, and it’s one of those words that would make a heck of a great Hollywood disaster movie title, like ‘Sharknado’ or ‘Armageddon.’ I do not, however, endorse either of those movies, they were both terrible. At any rate, a real cryovolcano seems like an interesting thing. It’s a volcano in the sense that it looks a little like a mountain and spews out material when the pressure builds from beneath the surface, but it’s not your traditional Earth-like volcano...
I remember being so happy back in mid-2015 when I heard that ESA made contact with the Philae lander. The little lander that could was thought to be lost to the cold of space, not receiving enough sunlight to power itself. But when the comet approached the Sun, the sunlight became intense enough to wake it back up and allow it to move some of the data it captured. But now, as the comet 67P has moved further from the Sun in its orbit, the likelihood that Philae will ever communicate again is slim. When the landing originally happened, the little...
You may have heard about the leaked rumour about the discovery of gravitational waves from earlier this week. It was from Lawrence Krauss, who is an amazing science communicator and author, as well as a darn good astrophysicist. My earlier rumor about LIGO has been confirmed by independent sources. Stay tuned! Gravitational waves may have been discovered!! Exciting. — Lawrence M. Krauss (@LKrauss1) January 11, 2016 It’s safe to say that as a guy with an inside scoop on a lot of the latest science news, this is something to get excited about. The ‘LIGO’ he is referring to stands...
A newly installed instrument on the European Southern Observatory’s (ESO) Very Large Telescope (VLT) has just taken it’s first images, what we call ‘first light’ in the astronomy world. The instrument, called GRAVITY, uses four different 8m telescopes to perform what we call ‘Baseline Interferometry.’ It is expected that tis is the instrument that will allow humanity to take the first ever direct picture of a black hole. Interferometry is a technique that uses multiple small telescopes all collecting light at a specific wavelength. These telescopes form a line that we call the baseline. The combination of these telescopes and...
