125 Great Science Videos: From Astronomy to Physics & Psychology Astronomy & Space Travel A Brief, Wondrous Tour of Earth (From Outer Space) – Video – Recorded from August to October, 2011 at the International Space Station, this HD footage offers a brilliant tour of our planet and stunning views of the aurora borealis.A Universe from Nothing – Video – In 53 minutes, theoretical physicist Lawrence Krauss answers some big enchilada questions, including how the universe came from nothing.A Year of the Moon in 2.5 Minutes – Video – The Lunar Reconnaissance Orbiter has been orbiting the moon for over a year. The footage gets compressed into 2 slick minutes.A Day on Earth (as Seen From Space) – Video – Astronaut Don Pettit trained his camera on planet Earth, took a photo once every 15 seconds, and then created a brilliant time-lapse film.Atlantis’s Final Landing at Kennedy Space Center – Video – After more than 30 years, the space shuttle era comes to a close. Video runs 30 minutes.
Space Weather Model Helps Simulate Solar Storms Related multimedia at NASA Goddard's Scientific Visualization Studio Scientists from NASA and three universities have presented new discoveries about the way heat and energy move and manifest in the ionosphere, a region of Earth’s atmosphere that reacts to changes from both space above and Earth below. Far above Earth’s surface, within the tenuous upper atmosphere, is a sea of particles that have been split into positive and negative ions by the sun’s harsh ultraviolet radiation. Called the ionosphere, this is Earth's interface to space, the area where Earth's neutral atmosphere and terrestrial weather give way to the space environment that dominates most of the rest of the universe – an environment that hosts charged particles and a complex system of electric and magnetic fields.
Cosmos is a fantastic show about ideological conversion more than it’s about science Like Carl Sagan before him, Neil deGrasse Tyson is constructing a cult of personality. Also like Sagan, that personality is not his own. In both its versions, Cosmos has had to serve a number of masters — they’ve both had to educate, to entertain, and to bring in advertising. By far their most defining goal, however, the one that most differentiates them from both the Planet Earths and Bill Nyes of the world, is ideological. Cosmos was, and very thankfully still is, an unabashed attempt to exalt the scientist and to advance the scientific worldview in its entirety, with as few tactful omissions as possible.
NSO/GONG: Helioseismology Over the last 15 years or so a new approach has emerged that provides a means of making direct measurements of the internal structure and dynamics of the Sun and, ultimately, other stars as well. The discovery of propagating sound waves in the Sun in the 1960's (Leighton, et al. 1962) and their explanation in the 1970's (Ulrich 1970, Leibacher and Stein 1971) has led to the development of this exciting new technique called helioseismology. This approach is actually a form of acoustical spectroscopy applied to these solar seismic waves. Helioseismology utilizes waves that propagate throughout the Sun to measure, for the first time, the invisible internal structure and dynamics of a star. There are millions of distinct, resonating, sound waves, seen by the doppler shifting of light emitted at the Sun's surface. Since the Sun is a ball of hot gas, its interior transmits sound very well.
Astronomers spy most distant Solar System object ever NASA/ESA/G. Bacon/STScI The Kuiper belt lies beyond Neptune. Solar Eruptions Cause Sunquakes A study led by UCL's Mullard Space Science Laboratory has shown for the first time that sunquakes can be produced during eruptions of magnetic field and charged particles, as the immense magnetic structure blasts off into the Solar System. The results will be presented by Dr Sergei Zharkov at the National Astronomy Meeting 2012 in Manchester on Friday 30th March 2012. The first observation of a sunquake was reported by Kosovichev & Zharkova in the late 1990s. During the last decade it has become well established that explosions in the Sun's atmosphere, known as solar flares, can create sunquakes through the impact of powerful beams of particles which travel into the Sun. This new study shows that eruptions of material known as coronal mass ejections are also able to produce sunquakes.
Top 10 Best Astrophotographers in the World The sky that we usually see and is considered to be an ordinary thing is in fact full of many wonders and secrets that need to be revealed but how to do this? Discovering more about the secrets that are hidden in the sky is costly and requires spending a long time trying to see the invisible objects and observe the changes that take place in front of your eyes using special equipment. The question is how to record all what you see and the amazing beauty of the invisible objects that can be found in the sky to enjoy watching them whenever you want? It is the role of the astrophotographers who come to dazzle us with the photos that they capture and are considered by many people to be unbelievable because of the stunning beauty that can be found in them.
Sunquakes, siesmic activity on the sun and solar flares. Sunquakes and solar flare activity are two of the great remaining mysteries of the sun. This "Granddaddy" solar flare prominence was recorded in 1945 and remains the largest recorded flare on video record. Sometimes a sunquake results in the solar flare, but a sunquake is not necessarily the only thing that can trigger a solar flare. The continuous erosion from the electrical arcing at the surface of the sun occasionally weakens the surface along large fault lines resulting in sunquakes. These fault lines eventually rupture and generate solar flare activity, releasing huge amounts of heat and energy from the hot, dense magma-like layers below the surface of the sun. Earth & Space Science Essential Science for Teachers Exploring topics that range from soil to the solar system, Essential Science for Teachers: Earth and Space Science provides participants the opportunity to increase their science content knowledge and develop new understandings of how this content connects to K - 6 classrooms. The Geologic Timeline "Which came first, the chicken or the egg?"
What is the Hottest Star? - Universe Today [/caption] Stars can range in temperature, from the relatively cool red dwarfs to superhot blue stars. So what is the hottest star in the Universe? First, let’s talk a bit about temperature. start chapter 0: Introductory Materials[+] 1: Introductory Physics: A Model Approach, Online Edition 2: Copyright and License Star Colors and Temperatures Stars appear to be exclusively white at first glance. But if we look carefully, we can notice a range of colors: blue, white, red, and even gold. In the winter constellation of Orion, a beautiful contrast is seen between the red Betelgeuse at Orion's "armpit" and the blue Bellatrix at the shoulder.
Supermoon – Super Moon A Supermoon is a full Moon or a new Moon at its closest point to Earth; also called perigee. A Supermoon looks around 12 to 14% bigger than its counterpart, the Micromoon. Perigee and Apogee The Moon's orbit around the Earth is not a perfect circle, but elliptical, with one side closer to the Earth than the other. The point on the Moon's orbit closest to the Earth, is called the perigee and the point farthest away is the apogee.