اخبار نجومی انگلیسی هفت آسمان

عناوین یادداشت‌ها

  • ARTEMIS - The First Earth-Moon Libration Orbiter یکشنبه 28 شهریور‌ماه سال 1389 19:39
    In August 1960, NASA launched its first communications satellite, Echo 1. Fifty years later, NASA has achieved another first by placing the ARTEMIS-P1 spacecraft into a unique orbit behind the moon, but not actually orbiting the moon itself. This type of orbit, called an Earth-Moon libration orbit, relies on a precise...
  • A Snapshot of Sea Ice یکشنبه 28 شهریور‌ماه سال 1389 19:33
    The Arctic Ocean is covered by a dynamic layer of sea ice that grows each winter and shrinks each summer, reaching its yearly minimum size each fall. While the 2010 minimum remains to be seen, NASA's Aqua satellite captured this snapshot on Sept. 3... How does the Aqua satellite "see" sea ice? Microwaves....
  • This Planet Smells Funny یکشنبه 28 شهریور‌ماه سال 1389 19:26
    Sept. 13, 2010: Giant planet GJ 436b in the constellation Leo is missing something. Would you believe swamp gas? To the surprise of astronomers who have been studying the Neptune-sized planet using NASA's Spitzer Space Telescope, GJ 436b has very little methane (CH 4 ). "Methane should be abundant on a planet of...
  • Goddard Scientists Explore Desert RATS یکشنبه 28 شهریور‌ماه سال 1389 19:18
    What's it like to explore the surfaces of other planets? Two scientists from NASA's Goddard Space Flight Center in Greenbelt, Md., are finding out by taking part in the annual Desert Research and Technology Studies, or Desert RATS, project, here on Earth. They will travel to the Arizona desert, a field location chosen...
  • Plants and the Carbon Capture Question یکشنبه 28 شهریور‌ماه سال 1389 19:13
    Plants are complicated Planting trees, as everyone knows, is a good way to offset climate change . The more greenery on Earth, the better, since vegetation act as carbon sinks, essentially sucking up the excess CO 2 and storing it in leaves, stems, and root systems... Based on Hot Zone blog entries --> Climate Posted:...
  • New Report Seeks to Improve Climate Forecasts جمعه 19 شهریور‌ماه سال 1389 20:25
    September 09, 2010 __JPL_CAPTION_1 › Browse version of image --> From farmers to government officials in charge of efficiently managing Earth's precious water and energy resources, people all over the world rely on accurate short-term climate forecasts on timescales ranging from a few weeks to a few years to...
  • Amateur astronomers are first to detect small objects impacting جمعه 19 شهریور‌ماه سال 1389 20:22
    Just as sunspot 1105 was turning away from Earth on Sept. 8, the active region erupted, producing a solar flare and a fantastic prominence. The eruption also hurled a bright coronal mass ejection into space. The eruption was not directed toward any planets... > View larger This is a snapshot of the prominence....
  • Amateur astronomers are first to detect small objects impacting جمعه 19 شهریور‌ماه سال 1389 20:19
    Amateur astronomers working with professional astronomers have spotted two fireballs lighting up Jupiter's atmosphere this summer, marking the first time Earth-based telescopes have captured relatively small objects burning up in the atmosphere of the giant planet. The two fireballs – which produced bright freckles on...
  • NASA Data Shed New Light About Water and Volcanoes on Mars جمعه 19 شهریور‌ماه سال 1389 20:14
    PASADENA, Calif. -- Data from NASA's Phoenix Mars Lander suggest liquid water has interacted with the Martian surface throughout the planet's history and into modern times. The research also provides new evidence that volcanic activity has persisted on the Red Planet into geologically recent times, several million...
  • Fireballs Light Up Jupiter جمعه 19 شهریور‌ماه سال 1389 20:11
    Sept. 9, 2010: In a paper published today in the Astrophysical Journal Letters , a group of professional and amateur astronomers announced that Jupiter is getting hit surprisingly often by small asteroids, lighting up the giant planet's atmosphere with frequent fireballs... "Jupiter is a big gravitational vacuum...
  • NASA's Aqua Satellite Sees Smoke Plume from Fourmile Canyon Fire جمعه 19 شهریور‌ماه سال 1389 20:08
    September 8, 2010 The Fourmile Canyon Fire continues to burn west of Boulder, Colorado on September 7 casting a long line of smoke to the east that was visible from NASA's Aqua satellite in its orbit around the Earth... The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this...
  • Deadly Tides Mean Early Exit for Hot Jupiters جمعه 19 شهریور‌ماه سال 1389 20:03
    Bad news for planet hunters: most of the "hot Jupiters" that astronomers have been searching for in star clusters were likely destroyed long ago by their stars. In a paper accepted for publication by the Astrophysical Journal , John Debes and Brian Jackson of NASA's Goddard Space Flight Center in Greenbelt,...
  • NASA Goddard Receives the Webb Telescope's Guiding Light from Ca جمعه 19 شهریور‌ماه سال 1389 20:00
    GREENBELT, Md. -- The Canadian Space Agency has delivered a test unit of the Fine Guidance Sensor to the James Webb Space Telescope to NASA's Goddard Space Flight Center in Greenbelt, Md... The arrival of the engineering test unit marks a major milestone for the Canadian team. The hardware has been put through its...
  • NASA Goddard Receives the Webb Telescope's Guiding Light from Ca جمعه 19 شهریور‌ماه سال 1389 19:59
    GREENBELT, Md. -- The Canadian Space Agency has delivered a test unit of the Fine Guidance Sensor to the James Webb Space Telescope to NASA's Goddard Space Flight Center in Greenbelt, Md... The arrival of the engineering test unit marks a major milestone for the Canadian team. The hardware has been put through its...
  • NASA Satellites Reveal Surprising Connection Between Beetle Atta جمعه 19 شهریور‌ماه سال 1389 19:54
    If your summer travels have taken you across the Rocky Mountains, you've probably seen large swaths of reddish trees dotting otherwise green forests. While it may look like autumn has come early to the mountains, evergreen trees don't change color with the seasons. The red trees are dying, the result of attacks by...
  • NASA Satellite Data Aids United Nations' Ability to Detect Globa جمعه 19 شهریور‌ماه سال 1389 19:47
    In the midst of a difficult fire season in many parts of the world, the United Nations' (UN) Food and Agriculture Organization has launched a new online fire detection system that will help firefighters and natural hazards managers improve response time and resource management... The Global Fire Information Management...
  • Asteroid Cornucopia جمعه 19 شهریور‌ماه سال 1389 19:43
    New research from NASA's Spitzer Space Telescope reveals that asteroids somewhat near Earth, termed near-Earth objects, are a mixed bunch, with a surprisingly wide array of compositions. Like a piñata filled with everything from chocolates to fruity candies, these asteroids come in assorted colors and compositions....
  • Two Asteroids to Pass by Earth Wednesday جمعه 19 شهریور‌ماه سال 1389 19:34
    PASADENA, Calif. – Two asteroids, several meters in diameter and in unrelated orbits, will pass within the moon's distance of Earth on Wednesday, Sept. 8. Both asteroids should be observable near closest approach to Earth with moderate-sized amateur telescopes. Neither of these objects has a chance of hitting Earth. A...
  • NASA's Magnetospheric Mission Passes Major Milestone جمعه 19 شهریور‌ماه سال 1389 19:31
    The universe is still an arcane place that scientists know very little about, but a new NASA Solar Terrestrial Probe mission is going to shed light on one especially mysterious event called magnetic reconnection. It occurs when magnetic lines of force cross, cancel, and reconnect releasing magnetic energy in the form...
  • NASA Chat: Cheating the Weather to Improve On-Time Arrivals جمعه 19 شهریور‌ماه سال 1389 19:27
    We've all heard this announcement on an airplane before: "Uh, folks, we've got some weather around the airport right now. So I expect we'll be circling probably for the next half hour or so." Heather Arneson, a NASA Aeronautics Scholarship recipient and doctoral student at the University of Illinois, spent...
  • NASA Tops Off Earl Research with Historic Global Hawk Flight جمعه 19 شهریور‌ماه سال 1389 19:24
    NASA completed a historic day for its hurricane research on Thursday as it put the Global Hawk over Earl, marking the first time the unmanned drone flew over a fully formed hurricane... The Global Hawk also flew in concert with NASA’s DC-8 during the DC-8’s fourth and final research flight to Earl. Both planes are...
  • Missing Piece Inspires New Look at Mars Puzzle جمعه 19 شهریور‌ماه سال 1389 19:20
    September 03, 2010 __JPL_CAPTION_1 › Browse version of image --> PASADENA, Calif. -- Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life... "This doesn't say...
  • Russian Firestorm: Finding a Fire Cloud from Space جمعه 19 شهریور‌ماه سال 1389 19:16
    Thick, choking smoke hung over Russia on August 1, 2010, adding to the misery of a stifling summer heat wave. Thousands of people were fleeing nearly 700 fires burning in the drought-dried forests and peat bogs of western Russia, while those not directly threatened were struggling to see through and breathe the smoky...
  • Spitzer Finds a Flavorful Mix of Asteroids جمعه 19 شهریور‌ماه سال 1389 19:05
    New research from NASA's Spitzer Space Telescope reveals that asteroids somewhat near Earth, termed near-Earth objects, are a mixed bunch, with a surprisingly wide array of compositions. Like a piñata filled with everything from chocolates to fruity candies, these asteroids come in assorted colors and compositions....
  • NASA Selects Science Investigations for Solar Probe Plus جمعه 19 شهریور‌ماه سال 1389 18:59
    WASHINGTON -- NASA has begun development of a mission to visit and study the sun closer than ever before. The unprecedented project, named Solar Probe Plus, is slated to launch no later than 2018. The small car-sized spacecraft will plunge directly into the sun's atmosphere approximately four million miles from our...
  • NASA's Successful Ice Cloud and Land Elevation Mission Comes to جمعه 12 شهریور‌ماه سال 1389 18:55
    One of NASA's orbiting sentinels is expected to return to Earth in a few days. The agency's Ice, Cloud, and land Elevation (ICESat) satellite completed a very productive scientific mission earlier this year. NASA lowered the satellite's orbit last month and then decommissioned the spacecraft in preparation for...
  • Hurricane Katrina: A NASA Satellite Video Retrospective جمعه 12 شهریور‌ماه سال 1389 18:49
    In early August 2005, Katrina was just a name. By September, it had become synonymous with the costliest and one of the deadliest tropical cyclones in U.S. history. Five years later, NASA is revisiting Hurricane Katrina with a short video that shows the storm as captured by NASA satellites. NASA provides space-based...
  • Alpha Magnetic Spectrometer Makes Last Stop on Earth جمعه 12 شهریور‌ماه سال 1389 18:45
    A new experiment designed to reveal the origin and structure of the universe has reached its last stop on Earth before it’s set to ride into orbit aboard space shuttle Endeavour early next year. The long-awaited Alpha Magnetic Spectrometer-2 (AMS) arrived Aug. 26 at NASA's Kennedy Space Center in Florida, secured in...
  • Tracing the Big Picture of Mars' Atmosphere جمعه 12 شهریور‌ماه سال 1389 18:39
    August 26, 2010 __JPL_CAPTION_1 › Browse version of image --> One of the instruments on a 2016 mission to orbit Mars will provide daily maps of global, pole-to-pole, vertical distributions of the temperature, dust, water vapor and ice clouds in the Martian atmosphere. The joint European-American mission,...
  • Kepler Discovers Multiple Planets Transiting a Single Star جمعه 12 شهریور‌ماه سال 1389 18:27
    August 26, 2010: NASA's Kepler spacecraft has discovered the first confirmed planetary system with more than one planet crossing in front of, or transiting, the same star. The transit signatures of two distinct Saturn-sized planets were seen in the data for a sun-like star designated "Kepler-9." The planets...