Cosmology Videos
newest 100 cosmology videos / cosmology widgets / media rss:

Physicists can't see it and don't know much about what it is, but dark energy makes up 70 percent of the universe. Meet one of the country's leading scientists trying to understand dark energy and the role it plays in causing our universe to expand.

Last week we talked about galaxies in general, and hinted at the most violent and energetic ones out there: active galaxies. Quasars have been a mystery for half a century; what kind of object could throw out more radiation than an entire galaxy? A black hole, it turns out, with the mass of hundreds of millions of suns performs this feat. Let's trace back the history of quasars, how they were first discovered and puzzled astronomers for so long. And let's look at what we know today.

Baby Boom Galaxy Churning Out Stars

This week we're going to look at some of the biggest objects in the Universe: galaxies. It was the discovery of galaxies in the early 20th century that helped astronomers realize just how big the Universe is, and how far away everything is. Let's learn how galaxies formed and how they evolve and change over time, merging with the neighbors. And what the future holds.

And now we reach the third part of our trilogy on the human exploration and colonization of Mars. Humans will inevitably tire of living underground, and will want to stretch their legs, and fill their lungs with fresh air. One day, we'll contemplate the possibility of reshaping Mars to suit human life. Is it even possible? What technologies would be used, and what's the best we can hope for?

This is our third installment in our series of student questions shows and these questions come to us from Collinsville High School.

After astronauts make the first tentative steps onto the surface of Mars, a big goal will be colonization of the Red Planet. The first trailblazers who try to live on Mars will have their work cut out for them, being in an environment totally hostile to life. What challenges will they face, and how might they overcome them?

In this episode, we'll look at a couple of bogus attempts to undermine science related to Lunar and Solar astrophysics. I apologise for the somewhat erratic sound/volume in this video. I did not record it all in one go, and I have no idea what I'm doing in iMovie. The next one will be better. To those who were referred to me by DonExodus2, thank you for checking out my videos and I hope you'll like what you see enough to subscribe. To DonExodus2 himself, thank you very much indeed for your support. Various multimedia in this video was created by NASA/ESA/JAXA/ESO/Berkley/Exeter

We're learned about the failed missions to Mars in the past, and the current spacecraft, rovers and landers currently exploring the Red Planet. But the real prize will come when the first human sets foot on Mars. Robots are cheaper, but nothing beats having a real human being on the scene, to search for evidence of water and life.

From visionary author Dava Sobel comes THE PLANETS, a book that reveals the beauty of our solar system in ways that astronomers and laymen alike can enjoy. History, astrology, and myth all play into her unique treatment of each planet.

I know last week was a bit of a dry history lesson, but we wanted to give you some understanding of past efforts to explore Mars. Now we'll look at the missions currently in orbit, and crawling around the surface of Mars, and help you understand the science that's happening right now.

This is part 2 of a 5 part episode. To watch the full show go to my channel (Zuke696) then go to my Playlist, find the show then click Play All - It has been fifty years since man first ventured into space, but the greatest secrets are yet to be revealed. Mars is the planet in our solar system most similar to Earth despite otherworldly features such as the largest volcano in the Solar System. Rumors of life on Mars may be substantiated as NASA orbiters and rovers discover new evidence of frozen water just beneath the rusty soil. Did alien life exist there? As Earth reels with the effects of global warming, Mars becomes the most likely candidate for eventual human habitation. Cutting-edge computer graphics are used to show what life would be like on Mars, and to imagine what kind of life forms might evolve in alien atmospheres. Author: Zuke696 Keywords: Cosmos Universe Mars Sagan Astronomy Planets Stars Galaxies Cosmology Hubble Big Bang Dark Matter Energy SETI Added: June 11, 2008

Author: Twilite Added: Tue, 10 Jun 2008 20:16:18 -0800 Duration: 331Music and video by Christian Miller

Author: Twilite Added: Tue, 10 Jun 2008 20:16:18 -0800 Duration: 331Music and video by Christian Miller

With last month's safe arrival of the Phoenix Mars Lander, Mars enthusiasts breathed a collective sigh of relief… phew. Now it's time to search for evidence of organic molecules in the ice at Mars' north pole. But this is just the latest in a long series of missions sent to the Red Planet. Let's have a history lesson, and look back at the missions sent to Mars, successful and unsuccessful.

Science video on Mars presenting VRMars Astronomy Software. The video shows panoramas and images, including the "Whale" panorama and Martian sunset, taken by NASA's Mars Rover Spirit during the Mars Rover Mission. The video was created with the use of virtual reality science software VRMars-Spirit - The Red Planet Mars 3D, released by Sciterian Technologies, and powered by the technology VRPresents that gives an impression of being on the surface of Mars. Great astronomy video for those interested in science, and space exploration enthusiasts. Get this astronomy program at www.vrmars.com or www.vrmars.com/VRMars-Spirit-The-Red-Planet-Mars-3D.htm , and enjoy roving Mars. See the planet like you were one of the Mars Rovers at www.vrplanet.com . Credits: NASA/JPL-Caltech/Cornell/MSSS/USGS/OSU/Honeybee Robotics/New Mexico Museum of Natural History and Science - More information at http://www.sciterian.com , and in this astronomy software.

Author: vrmars Added: Fri, 06 Jun 2008 20:49:42 -0800 Duration: 96Science Video on Mars presenting VRMars Astronomy Software. The Video shows the panorama and images that present the "Mazatzal" Rock taken by the Mars Rover Spirit - on of the rovers participating in the NASA's Mars Exploration Rover Mission. The video was created with the aid of the virtual reality science software VRMars-Spirit - The Red Planet Mars 3D, released by Sciterian Technologies, and powered by the technology VRPresents that gives an impression of being on the surface of Mars. Great science video for astronomy lovers, and space exploration enthusiasts. The video shows also microscopic images of a hole drilled in the rock. Get this astronomy program at www.vrmars.com/VRMars-Spirit-The-Red-Planet-Mars-3D.htm , www.vrmars.com or www.vrplanet.com , and enjoy roving Mars. See the planet through the Mars Rover's eyes. Credits: NASA/JPL-Caltech/MSSS/Cornell/USGS/OSU/Honeybee Robotics/New Mexico Museum of Natural History and Science - More credits in that astronomy software.

Author: vrmars Added: Fri, 06 Jun 2008 20:49:42 -0800 Duration: 96Science Video on Mars presenting VRMars Astronomy Software. The Video shows the panorama and images that present the "Mazatzal" Rock taken by the Mars Rover Spirit - on of the rovers participating in the NASA's Mars Exploration Rover Mission. The video was created with the aid of the virtual reality science software VRMars-Spirit - The Red Planet Mars 3D, released by Sciterian Technologies, and powered by the technology VRPresents that gives an impression of being on the surface of Mars. Great science video for astronomy lovers, and space exploration enthusiasts. The video shows also microscopic images of a hole drilled in the rock. Get this astronomy program at www.vrmars.com/VRMars-Spirit-The-Red-Planet-Mars-3D.htm , www.vrmars.com or www.vrplanet.com , and enjoy roving Mars. See the planet through the Mars Rover's eyes. Credits: NASA/JPL-Caltech/MSSS/Cornell/USGS/OSU/Honeybee Robotics/New Mexico Museum of Natural History and Science - More credits in that astronomy software.

With the successful touchdown of the Phoenix Lander, NASA is continuing its quest to find evidence of past and present water on Mars. This week we discuss the geologic history of Mars, and explain why NASA thinks the story of water on Mars is so important. And how this ties into the search for life on the Red Planet.

You've heard us say it 90 times: "How we know what we know." But how do we know how we know what we know? So astronomers like all scientists use the scientific method. Without the scientific method we'd probably still think the Earth is flat, only a few thousand years old and the center of the universe. But with the scientific method everything changes. From biology, to chemistry, to physics, to astronomy it is impossible to count the number of changes that have happened to human society because of changes brought about from the scientific method. In this episode we tell you about what the scientific method is, how you can use it to improve your life, and discuss why gravity isn't just a theory.

Since the dawn of humanity, astronomers have wished to destroy the atmosphere. Oh sure, it's what we breathe and all, but that stupid atmosphere is always getting in the way. Since destroying the atmosphere is out of the question, astronomers have figured out how to work with it. To distort the mirror of the telescope itself though the magic of adaptive optics.

Our understanding of the cosmos has been revolutionized by the Hubble Space Telescope. The breathtaking familiar photos, like the Pillars of Creation, pale in comparison to the astounding amount of science data returned to Earth. Hubble's getting old, though, serviced several times already, and due for another mission later this year. Let's relive the historic observatory's amazing life so far, and see what the future holds.

Hopefully you've all recovered from part 1 of this set, where we make you sad about the future of the humanity, the Earth, the Sun and the Solar System. But hang on, we're really going to bring you down. Today we'll look far far forward into the distant future of the Universe, at timescales that we can barely comprehend.

A look at the science behind the Big Bang Theory and how it applies to belief in God.

This is a show we wanted to do since we started Astronomy Cast but we always thought it was too early. We wanted you to know that we're positive, happy people with enthusiasm for astronomy and the future. It's time for some sadness. It's time for a grim look to see what the future holds for the Universe. This week we stay close to home and consider the end of humanity, the Earth, the Sun, and the entire Solar System. Next week we'll extend out to the very end of the Universe.

Our senses can only detect a fraction of the phenomena happening in the Universe. That's why scientists and engineers develop detectors, to let us see radiation and particles that we could never detect with our eyes and ears. This week we'll go through them all, so you can understand how we see what we can't see.

Have you ever wondered what it takes to get a spacecraft off the Earth and into space. And how managers at NASA can actually navigate a spacecraft to another planet? And how does a gravity assist work? And how do they get them into orbit? And how do they land? So many questions…

Have you ever heard that photons behave like both a particle and a wave and wondered what that meant? It's true. Sometimes light acts like a wave, and other times it behaves like a little particle. It's both. This week we discuss the experiments that demonstrate this, explain how scientists figured it all out in the first place. What does wave/particle duality have to do with astronomy? Well, everything, since light is the only way astronomers can see out into the Universe.

Giant clouds of interstellar gas are featured in this episode.