Sounding Rockets. BRRISON Web Site. Venus Express / Space Science. Astronomy 101 - Learning About Stars. Despite the wide spread use of phrases like "the emptiness of space," space is definitely not empty. It is full of gasses and dust. This can even be see as clouds of dust obscure the view of many stars. This matter can become compressed by any number of celestial events, including collisions and blast waves from exploding stars, causing lumps of matter to form.
If the gravity of these lumps of matter is strong enough, they can pull in other matter for fuels and as they continue to compress, their internal temperatures are raised to such a point that the hydrogen ignites in thermonuclear fusion. While the gravity continues pulling, trying to collapse the star into the smallest possible size, the fusion stabilizes it, preventing further contraction. Thus, a great struggle ensues for the life of the star, as each force continues to push or pull. How Do Stars Produce Light, Heat, and Energy? Eventually, most of the fuel, hydrogen, is exhausted. Assignment. Tide calendars / prediction Dana Point Buoy. Description This is the tide calendar for Dana Point Buoy in California, United States.
Windfinder specializes in wind, waves, tides and weather reports & forecasts for wind related sports like kitesurfing, windsurfing, surfing, sailing or paragliding. The tide calendar is available worldwide. Predictions are available with water levels, low tide and high tide for up to 7 days into the future.
Tide predictions are provided without warranty and may not be used for navigation or decisions that can result in harm to anyone or anything. Check the tide calendar for Dana Point Buoy when you want to find the best last minute travel destination for your kiteboarding, windsurfing or sailing vacation in United States. Units Our default units are knots and degrees Celsius. Help If you need more information about our tide calendar for Dana Point Buoy, have a look at our help section.
StarTalk Live: The Particle Party (Part 2) Listen now: Season 3, Episode 19 Photo credit: Leslie Mullen StarTalk Live’s celebration of the discovery of the Higgs boson on July 11, 2012 continues as CERN physicist Kyle Cranmer clues us in to what’s next in the investigation of the Higgs, now that it turns out it isn’t exactly what they thought it would be. Plus a lively Q&A session with the audience that includes Bill Nye the Science Guy bragging about the spacecraft he’s building and astrophysicist Neil deGrasse Tyson waxing poetic about why photons are beautiful.
You’ll also learn what Super Symmetry is, and why it may hold the key to understanding Dark Matter. Co-Host:Eugene Mirman, comedian Guests: Bill Nye the Science GuyKyle Cranmer, NYU Assistant Professor of Physics and CERN physicistScott Adsit, comedian, 30 RockSarah Vowell, author. Welcome to the Mt. SAC Randall Planetarium.
Supersymmetry. The Four Fundamental Forces. As of July 1, 2013 ThinkQuest has been discontinued. We would like to thank everyone for being a part of the ThinkQuest global community: Students - For your limitless creativity and innovation, which inspires us all. Teachers - For your passion in guiding students on their quest. Partners - For your unwavering support and evangelism. Parents - For supporting the use of technology not only as an instrument of learning, but as a means of creating knowledge. We encourage everyone to continue to “Think, Create and Collaborate,” unleashing the power of technology to teach, share, and inspire.
Best wishes, The Oracle Education Foundation. Time Machine. EARTH-SIZED PLANET IN THE HABITABLE ZONE OF ANOTHER STAR: Using NASA's Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting in the "habitable zone" of another star. The planet, named "Kepler-186f" orbits an M dwarf, or red dwarf, a class of stars that makes up 70 percent of the stars in the Milky Way: full story. THE TURQUOISE FRINGE: Lunar eclipses are supposed to be red, yet when the Moon passed through Earth's amber shadow on April 15th, many observers witnessed a softly-glowing band of turquoise blue. Robert and Elisabeth Slobins send this picture of the phenomenon from Fort Myers, Florida: The source of the turquoise is ozone. Prof. Richard Keen, an atmospheric scientist from the University of Colorado explains: "During a lunar eclipse, most of the light illuminating the Moon passes through the stratosphere, and is reddened by scattering.
For years, Keen has been using lunar eclipses to probe the transparency of the stratosphere. Helioviewer.org - Solar and heliospheric image visualization tool. SDO - Solar Dynamics Observatory. Citizen Scientist Look at jpeg images that are posted soon after being received by the science teams. They are provided at a rate of one image per channel every 15 minutes, with that rate changing during spacecraft maneuvers or when a data outage occurs. SDO Data Access Website Browse a library of AIA, HMI, and EVE images. Can download images of various sizes, create animations, download daily, full-disk movies, or run kiosk movies. Create time series plots of EVE Level 2 data. LMSAL Sun Today View and download the latest AIA and HMI images. LMSAL iSolSearch Search for events & features with an interactive map of the Sun; view cutout movies of those phenomena.
SDAC Latest Images The most recent AIA and HMI images in 1k x 1k GIFs with the SOHO false color scheme. Helioviewer A web-based application that can be used to examine time series of solar images. AIA synoptic data. MESSENGER Web Site. STEREO - Comet ISON. New: Where to view Comet ISON's encounter with the Sun. Comet C/2012 S1 was discovered in September 2012 by Russian astronomers Vitali Nevski and Artyom Novichonok using data from the International Scientific Optical Network (ISON).
For that reason, it is also known as Comet ISON. This comet is on a close encounter with the Sun on November 28, 2013 (Thanksgiving day in the U.S.), when it will pass at a distance of only 2.7 solar radii from the center of the Sun. Since Comet ISON was discovered so far out, beyond the orbit of Jupiter, and will pass so close to the Sun, many think that this could turn out to be a major comet. A number of NASA missions, including STEREO, are planning an observing campaign to observe the comet as it passes by the Sun.
Below, we discuss the view that the STEREO observatories (plus SOHO and SDO) will have of Comet ISON as it swings by the Sun. On a separate page, we discuss the observing strategies and anticipated science of the STEREO instruments. ISONblog - The Latest Hubble Image of Comet ISON. As of mid-November, ISON is officially upon us. Using Hubble, we've taken our closest look yet at the innermost region of the comet, where jets of sublimating ice are fueling a spectacular tail. Visit Hubble Heritage for high-resolution images. Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA) Made from observations on November 2nd, the image combines pictures of ISON taken through blue and red filters.
A stacked color composite of the November 2nd observations. Hubble tracked the comet, each red and blue image of ISON itself adds up in the same place, producing a clear, colorful image of the comet. Smeared-out background stars don't fare so well. Rays, which can be seen as small streaks angled in random directions, and the chip gap: a horizonal dead zone in the middle of the image. Credit: Hubble Heritage Team As we expect, the spherical coma around ISON's nucleus is blue and the tail has a redder hue. This is most color separation we've seen so far in ISON. Swift: Results > Images > NASA's Swift Sizes Up Comet ISON. The Ultraviolet/Optical Telescope aboard NASA's Swift imaged comet ISON (center) on Jan. 30, when it was located about 3.3 degrees from the bright star Castor in the constellation Gemini.
At the time of this 5.5-minute optical exposure, ISON was about 5,000 times fainter than the limit of human vision. Credit: NASA/Swift/D. Bodewits, UMCP. NASA - EPOXI Mission - Gallery. Gallery DIF Observes ISON Comet ISON, just discovered in September 2012, is expected to become more observable by amateurs later this year. As part of an extended observing campaign, the comet was imaged by the Deep Impact Flyby (DIF) spacecraft over a 36-hour period in mid-January while the comet was 5.1 AUs from the sun and 5.3 AUs from DIF. 146 images were collected using a clear filter in the MRI every 15-minutes from Jan 17 03:40 UT to Jan 18 16:20 UT.
Scientists have many ways of processing and analysing the images. Here we highlight two ways the 146 images were used. (North is up, East is to the left, and the Sun is to the left.) Technique 1: Stack and Add Image 1: This image of comet ISON (C/2012 S1) combines all 146 80-second clear filter exposures for a total integration time of 11680 seconds (about 3.25 hours). Technique 2: Align and animate Animation 1: Movie of comet ISON (C/2012 S1) on January 17-18, 2013 as seen from the Deep Impact spacecraft. Formats Comet ISON background. Mars Express / Space Science. Mars Exploration Rover Mission: Home. Mars Science Laboratory. Mars Reconnaissance Orbiter. Lunar Reconnaissance Orbiter. Lunar Reconnaissance Orbiter.
International Space Station. Chandra X-ray Observatory - NASA's flagship X-ray telescope. NASA Spitzer Space Telescope. Comet ISON Brightening Fast as its Moment of Truth Nears - Press Releases. Night-owls and early risers across North America can watch the full Moon go through a total eclipse in the early hours of Tuesday, April 15th. Contact: Alan MacRobert, Senior Editor 617-864-7360 x2151, macrobert@SkyandTelescope.com Note to Editors/Producers: This release is accompanied by high-quality graphics; see the end of this release. This month we’re closer to Mars than Earth has come for almost 6½ years. The Red Planet appears brighter and bigger in the evening sky than it has since December... Bright Regulus will disappear behind a faint asteroid for several seconds very late next Wednesday night for skywatchers in the New York City region and points north.
A Sky & Telescope Press Release Tiny, greenish white, and harder to see every day, Comet ISON is descending toward the sunrise horizon and its November 28th perihelion. This is your last chance to catch it before its fateful solar broiling. Contact: Alan M. Contact: Alan M. Contact: Alan M. May 14, 2012 Contact: Alan M. Small Worlds: 2013's Holiday Comet. Comet C/2012 S1 (ISON): It's a big year for small worlds - asteroids, comets, dwarf planets and more. Listed below are all the links and tools you'll need to fully experience the exciting events of the coming year. NASA Begins Search For What Is Left Of Comet ISON Dr. Carey Lisse Just prior to its closest approach to the sun on November 28, Comet ISON went through a major heating event, and likely suffered a major disruption. At this time, scientists are not sure how much of the comet survived intact.
Most agree that ISON was destroyed (with greater than 90% probability of this having occurred), leaving behind small (< 10 m radius) pieces of rubble, but perhaps, with maybe 10% probability of occurring, also leaving behind some important fragments 100m radius or larger, big enough to study. What remains of Comet ISON appears to brighten and spread out, then fade. Read More Websites Social Media Comet ISON Group - Flickr#cometISON - Twitter and Facebook#WillItBreakUp - Twitter and Facebook. Comet C/2013 R1 Lovejoy - Interactive Sky Chart and Ephemerides Computations - The Sky Live. SDO | Solar Dynamics Observatory. Solar and Heliospheric Observatory Homepage. Astronomy Clubs bringing the wonders of the universe to you - Night Sky Network.
CfA Ground Based Telescopes. Fred Lawrence Whipple Observatory, Amado, Arizona The major instrument on Mt. Hopkins is the MMT Observatory's 6.5-m-diameter optical telescope (operated jointly by SAO with the University of Arizona). Others include the Very Energetic Radiation Imaging Telescope Array System (VERITAS), an array of Cerenkov telescopes operating at the FLWO Basecamp; the original 10-m gamma-ray Cerenkov telescope; the Peters Automated Infrared Imaging Telescope (PAIRITEL), a 1.3-m infrared telescope (formerly the northern 2MASS telescope, now operated by SAO); a 1.2-m imaging optical/infrared telescope; and the 1.5-m Tillinghast spectroscopic telescope.
FLWO is also home to HAT, the Hungarian Automated Telescope. Magellan Telescopes The Las Campanas Observatory on Cerro Las Campanas in Chile, operates twin 6.5-m optical telescopes for a consortium of institutions, which includes Harvard University, the Carnegie Observatories, MIT, the University of Michigan, and the University of Arizona. MMT Observatory.