background preloader

Solar System, Solar System Information, Facts, News, Photos

Solar System, Solar System Information, Facts, News, Photos
Our Cosmic Neighborhood From our small world we have gazed upon the cosmic ocean for thousands of years. Ancient astronomers observed points of light that appeared to move among the stars. They called these objects "planets," meaning wanderers, and named them after Roman deities—Jupiter, king of the gods; Mars, the god of war; Mercury, messenger of the gods; Venus, the goddes of love and beauty, and Saturn, father of Jupiter and god of agriculture. The stargazers also observed comets with sparkling tails, and meteors or shooting stars apparently falling from the sky. Since the invention of the telescope, three more planets have been discovered in our solar system: Uranus (1781), Neptune (1846), and, now downgraded to a dwarf planet, Pluto (1930). The four planets closest to the sun—Mercury, Venus, Earth, and Mars—are called the terrestrial planets because they have solid rocky surfaces. Nearly every planet—and some of the moons—has an atmosphere. Moons, Rings, and Magnetospheres

Related:  h07katkarScience sequencePhysicsAstronomy

World Sunlight Map Watch the sun rise and set all over the world on this real-time, computer-generated illustration of the earth's patterns of sunlight and darkness. The clouds are updated daily with current weather satellite imagery. The Mercator projection used here is one way of looking at the spherical earth as a flat map. Your Age on Other Worlds Want to melt those years away? Travel to an outer planet! <div class="js-required"><hr> This Page requires a Javascript capable browser <hr></div> Fill in your birthdate below in the space indicated. Astronomy I missed the Occultation of Lambda Aquarii by Venus, but Tom Harradine didn't Partial Solar Eclipse, April 29 2014 Intel community willing to allow higher resolution commercial imagery For the last few years, commercial satellite remote sensing company DigitalGlobe (and, before its merger with DigitalGlobe, GeoEye) has been lobbying the government to allow it to sell sharper satellite imagery that it’s currently allowed.

Solar System Planets: Order of the 8 (or 9) Planets Ever since the discovery of Pluto in 1930, kids grew up learning about the nine planets of our solar system. That all changed starting in the late 1990s, when astronomers began to argue about whether Pluto was a planet. In a highly controversial decision, the International Astronomical Union ultimately decided in 2006 to call Pluto a "dwarf planet," reducing the list of "real planets" in our solar system to eight. However, astronomers are now hunting for another planet in our solar system, a true ninth planet, after evidence of its existence was unveiled on Jan. 20, 2016. The so-called "Planet Nine," as scientists are calling it, is about 10 times the mass of Earth and 5,000 times the mass of Pluto.

Recapitulation The embryonic development of all vertebrates shows remarkable similarities as you can see from these drawings (supplied by Open Court Publishing Company). The drawings in the top row are of the embryonic stage called the pharyngula. At this stage ("I") they all contain a: notochorddorsal hollow nerve cord a tail extending behind the anus a series of paired branchial grooves. The branchial grooves are matched on the inside by a series of paired gill pouches. In fishes, the pouches and grooves eventually meet and form the gill slits, which allow water to pass from the pharynx over the gills and out the body.

Radioactive Decay: A Sweet Simulation of a Half-life PiccoloNamek [GFDL or CC-BY-SA-3.0], via Wikimedia Commons Purpose To demonstrate that the rates of decay of unstable nuclei can be measured, that the exact time that a certain nucleus will decay cannot be predicted, and that it takes a very large number of nuclei to find the rate of decay. Context Glossary of Astronomical Terms Glossary Absolute magnitude- the brightness a star would be as seen from a distance of 10 parsecs Absolute Zero- the lowest possible temperature, at which substances contain no heat energy, and atomic movement has stopped Accretion- accumulation of dust and gas into larger bodies such as stars, planets, and moons Accretion disk- a disk of hot, glowing matter spiraling into a black hole - The Solar System and Planets The four inner planets are all made of rocks and have metallic cores. Our Earth is the largest of these inner planets. Learn this line to remember the names of the 8 planets. 10 Incredible Photos of Animals In The Womb Animals The chance to see things from a different perspective ranks among humanity’s great needs. The following images of animals in the womb offer a totally new way of seeing other species on this planet; they cause us to pause, and—at least for a short time—to reflect on everything that is incredible about existence. This photo shows a bottlenose dolphin about six months through its gestation period. Bottlenose dolphins can be found wherever the ocean is relatively warm. They give birth after twelve months.

Lesson: The Energy of Decay (Provided courtesy of Think Green) Level: K-5 Time Frame: 1 initial session with additional observation days ABOUT THIS LESSON: (PDF version) In this lesson, students learn how decaying organic matter can be harvested as a source of energy. Astronomy Resources Subject Tracer Information Blog Astronomy Resources ( is a Subject Tracer™ Information Blog developed and created by the Virtual Private Library™. It is designed to bring together the latest resources and sources on an ongoing basis from the Internet for astronomical resources which are listed below. We always welcome suggestions of additional sites and resources to be added to this comprehensive listing and please submit by clicking here. Tim and Tim safely back in Space Station after spacewalk / Principia Tim and Tim safely back in Space Station after spacewalk 15 January 2016 After a 4 hour 43 minute spacewalk to replace a failed power regulator and install cabling, ESA astronaut Tim Peake and NASA astronaut Tim Kopra are back inside the International Space Station. Tim Peake testing spacesuit before spacewalk The meticulously planned and executed sortie was stopped early after Tim Kopra reported a small amount of water building up in his helmet.

Related:  PRIRODA I DRUŠTVOAstronomySpace & FlightAstronomyScience