Topic: European Space Agency
Written by Preston Dyches
Pasadena, CA – After a two-and-a-half-hour descent, the metallic, saucer-shaped spacecraft came to rest with a thud on a dark floodplain covered in cobbles of water ice, in temperatures hundreds of degrees below freezing.
The alien probe worked frantically to collect and transmit images and data about its environs — in mere minutes its mothership would drop below the local horizon, cutting off its link to the home world and silencing its voice forever.
Although it may seem the stuff of science fiction, this scene played out 12 years ago on the surface of Saturn’s largest moon, Titan. The “aliens” who built the probe were us. This was the triumphant landing of ESA’s Huygens probe.
Written by Guy Webster
Pasadena, CA – Data from each of the two rovers active on Mars reached Earth last week in the successful first relay test of a NASA radio aboard Europe’s new Trace Gas Orbiter (TGO).
The transmissions from NASA rovers Opportunity and Curiosity, received by one of the twin Electra radios on the orbiter on November 22nd, mark a strengthening of the international telecommunications network supporting Mars exploration. The orbiter’s main radio for communications with Earth subsequently relayed onward to Earth the data received by Electra.
Written by Guy Webster
Pasadena, CA – The most powerful telescope orbiting Mars is providing new details of the scene near the Martian equator where Europe’s Schiaparelli test lander hit the surface last week.
An October 25th observation using the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter shows three impact locations within about 0.9 mile (1.5 kilometers) of each other.
The scene shown by HiRISE includes three locations where hardware reached the ground. A dark, roughly circular feature is interpreted as where the lander itself struck.
NASA reports Herschel Space Observatory data reveals Ultraviolet Light plays role in creating Life Molecules
Written by Elizabeth Landau
Pasadena, CA – Life exists in a myriad of wondrous forms, but if you break any organism down to its most basic parts, it’s all the same stuff: carbon atoms connected to hydrogen, oxygen, nitrogen and other elements. But how these fundamental substances are created in space has been a longstanding mystery.
Now, astronomers better understand how molecules form that are necessary for building other chemicals essential for life. Thanks to data from the European Space Agency’s Herschel Space Observatory, scientists have found that ultraviolet light from stars plays a key role in creating these molecules, rather than “shock” events that create turbulence, as was previously thought.
Written by Elizabeth Landau
Pasadena, CA – On September 30th, the European Space Agency concluded its Rosetta mission and the study of comet 67P/Churyumov-Gerasimenko.
During the final month of the mission, NASA’s planet-hunting Kepler spacecraft had a unique opportunity to provide a “big picture” view of the comet as it was unobservable from Earth. Ground-based telescopes could not see comet 67P, because the comet’s orbit placed it in the sky during daylight hours.
From September 7th through September 20th, the Kepler spacecraft, operating in its K2 mission, fixed its gaze on comet 67P. From the distant vantage point of Kepler, the spacecraft could observe the comet’s core and tail. The long-range global view of Kepler complements the close-in view of the Rosetta spacecraft, providing context for the high-resolution investigation Rosetta performed as it descended closer and closer to the comet.
Written by DC Agle
Pasadena, CA – A new image of comet 67P/Churyumov-Gerasimenko was taken by the European Space Agency’s (ESA) Rosetta spacecraft shortly before its controlled impact into the comet’s surface on September 30th, 2016. Confirmation of the end of the mission arrived at ESA’s European Space Operations Center in Darmstadt, Germany, at 4:19am PDT (7:19am EDT / 1:19pm CEST) with the loss of signal upon impact.
The final descent gave Rosetta the opportunity to study the comet’s gas, dust and plasma environment very close to its surface, as well as take very high-resolution images.
Written by Karen O’Flaherty
Pasadena, CA – The European Space Agency’s orbiting X-ray observatory, XMM-Newton, has proved the existence of a “gravitational vortex” around a black hole. The discovery, aided by NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) mission, solves a mystery that has eluded astronomers for more than 30 years, and will allow them to map the behavior of matter very close to black holes. It could also open the door to future investigations of Albert Einstein’s general relativity.
Matter falling into a black hole heats up as it plunges to its doom. Before it passes into the black hole and is lost from view forever, it can reach millions of degrees. At that temperature it shines X-rays into space.
Written by Francis Reddy
Greenbelt, MD – LISA Pathfinder, a mission led by the European Space Agency (ESA) with contributions from NASA, has successfully tested a key technology needed to build a space-based observatory for detecting gravitational waves.
These tiny ripples in the fabric of space, predicted by Albert Einstein a century ago, were first seen last year by the ground-based Laser Interferometer Gravitational-Wave Observatory (LIGO).
Seismic, thermal and other noise sources limit LIGO to higher-frequency gravitational waves around 100 cycles per second (hertz).
Written by Michele Johnson
Moffett Field, CA – Dwarf planets tend to be a mysterious bunch. With the exception of Ceres, which resides in the main asteroid belt between Mars and Jupiter, all members of this class of minor planets in our solar system lurk in the depths beyond Neptune.
They are far from Earth – small and cold – which makes them difficult to observe, even with large telescopes. So it’s little wonder astronomers only discovered most of them in the past decade or so.
Pluto is a prime example of this elusiveness. Before NASA’s New Horizons spacecraft visited it in 2015, the largest of the dwarf planets had appeared as little more than a fuzzy blob, even to the keen-eyed Hubble Space Telescope.
Written by Steve Cole
Washington, D.C. – For more than three decades NASA has focused its space-faring skills and science chops CSI-like on an elusive global killer. Later this month, that pursuit takes us to East Asia. In a few years, part way to the moon.
We are getting close.
Air pollution causes an estimated 152,000 deaths a year across the Americas and more than 2 million deaths in the Western Pacific, according to the United Nations. Some parts of the world have a detailed view of local air quality from ground sensor networks and forecast models that generate public alerts. But for much of the world this type of information and warning are not available.
Now playing at the Movies
Showtime information provided by Discover Clarksville.
© 2006-2017 Clarksville, TN Online is owned and operated by residents of Clarksville Tennessee.