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Showing posts with label Earth. Show all posts
Showing posts with label Earth. Show all posts

Thursday, December 26, 2013

NASA and JAXA Announce Launch Date for Global Precipitation Satellite

December 17, 2013
Artist concept of the Global Precipitation Measurement (GPM) Core Observatory satellite.
Image Credit: NASA's Goddard Space Flight Center
RELEASE 13-376

Environmental research and weather forecasting are about to get a significant technology boost as NASA and the Japan Aerospace Exploration Agency (JAXA) prepare to launch a new satellite in February.

NASA and JAXA selected 1:07 p.m. to 3:07 p.m. EST Thursday, Feb. 27 (3:07 a.m. to 5:07 a.m. JST Friday, Feb. 28) as the launch date and launch window for a Japanese H-IIA rocket carrying the Global Precipitation Measurement (GPM) Core Observatory satellite from JAXA’s Tanegashima Space Center.

GPM is an international satellite mission that will provide advanced observations of rain and snowfall worldwide, several times a day to enhance our understanding of the water and energy cycles that drive Earth’s climate. The data provided by the Core Observatory will be used to calibrate precipitation measurements made by an international network of partner satellites to quantify when, where, and how much it rains or snows around the world.

“Launching this core observatory and establishing the Global Precipitation Measurement mission is vitally important for environmental research and weather forecasting,” said Michael Freilich, director of NASA’s Earth Science Division in Washington. “Knowing rain and snow amounts accurately over the whole globe is critical to understanding how weather and climate impact agriculture, fresh water availability, and responses to natural disasters.”

With the addition of the new Core Observatory, the satellites in the GPM constellation will include the NASA-National Oceanic and Atmospheric Administration (NOAA) Suomi National Polar-orbiting Partnership mission, launched in 2012; the NASA-JAXA Tropical Rainfall Measuring Mission (TRMM), launched in 1997; and several other satellites managed by JAXA, NOAA, the U.S. Department of Defense, the European Organisation for the Exploitation of Meteorological Satellites, the Centre National D’Etudies Spatiales of France and the Indian Space Research Organisation.

“We will use data from the GPM mission not only for Earth science research but to improve weather forecasting and respond to meteorological disasters,” said Shizuo Yamamoto, executive director of JAXA. “We would also like to aid other countries in the Asian region suffering from flood disasters by providing data for flood alert systems. Our dual-frequency precipitation radar, developed with unique Japanese technologies, plays a central role in the GPM mission.”

The GPM Core Observatory builds on the sensor technology developed for the TRMM mission, with two innovative new instruments. The GPM Microwave Imager, built by Ball Aerospace and Technology Corp., Boulder, Colo., will observe rainfall and snowfall at 13 different frequencies. The Dual-frequency Precipitation Radar, developed by JAXA with the National Institute of Information and Communication Technology in Tokyo, transmits radar frequencies that will detect ice and light rain, as well as heavier rainfall. It also will be able to measure the size and distribution of raindrops, snowflakes and ice particles.

(Learn More at Ask Kuiper)

For more information on the Global Precipitation Measurement mission, visit:

http://www.nasa.gov/gpm

and

http://www.jaxa.jp/projects/sat/gpm/index_e.html

Monday, December 16, 2013

Why extremophiles bode well for life beyond Earth - Louisa Preston



Published on Oct 7, 2013

View full lesson: http://ed.ted.com/lessons/why-extremo...

Life on Earth requires three things: liquid water, a source of energy within a habitable range from the sun and organic carbon-based material. But life is surprisingly resilient, and organisms called extremophiles can be found in hostile living conditions (think extreme temperatures and little access to oxygen). Louisa Preston argues why extremophiles give astrobiologists hope for life in the universe.

Lesson by Louisa Preston, animation by Emanuel Friberg.

Wednesday, November 27, 2013

Tuesday, November 26, 2013

With 2 More Cubesats in Orbit, Earth-imaging Startup Planet Labs Ships Next Batch of 28 to Wallops

By Debra Werner | Nov. 26, 2013

Planet Labs is preparing for the scheduled launch Dec. 15 of its operational Earth imaging constellation of 28 satellites, dubbed Flock 1, to the international space station.
Credit: Photo by Gabriel Liendo
SAN FRANCISCO — Planet Labs, the San Francisco company planning to establish the world’s largest Earth imaging constellation, announced Nov. 26 the successful launch of two satellites and shipment to Virginia of 28 additional spacecraft in preparation for their December launch.

On Nov. 21, Planet Labs sent triple cubesats Dove 3 and Dove 4 into polar orbit on a Dnepr rocket from Russia’s Yasny launch site. “The launch was extremely successful,” said William Marshall, Planet Labs co-founder and chief executive. “They went into precisely the orbit we wanted. We have also successfully made contact.”

The latest additions to the Planet Labs fleet offer improvements in the capability provided by the firm’s first satellites launched in April, Dove 1 and Dove 2, which also were triple cubesats measuring 10 centimeters by 10 centimeters by 30 centimeters.

Dove 3 and Dove 4 will demonstrate the firm’s latest technology, including upgraded communications, attitude control and observation technology. “We like to iterate our satellite designs very rapidly,” Marshall said. “It’s the same compact form factor as Dove 1 and Dove 2, but we have stuck in more capability.”

Continue Learning: http://www.spacenews.com/article/civil-space/38361with-2-more-cubesats-in-orbit-earth-imaging-startup-planet-labs-ships-next

Hi-Def Space Selfies Coming To Your Web Browser Soon

Posted by Andrew Fazekas in StarStruck on November 25, 2013

Space buffs can expect to to ogle stunning near-real-time Earth views anytime on their computers and mobile devices once new HD cameras are installed on the International Space Station.
Credit: NASA
Coming soon—take the ultimate selfie from space!

Two high-definition cameras are on their way now to the International Space Station. There, they will aim to revolutionize how we view our planet and ourselves.

A Canadian-based company named UrtheCast will offer the world’s first near-live HD video and imagery of Earth from space, using the new cameras. Launched aboard a Russian Soyuz spacecraft on Monday, the two eyes in the sky will be installed on the underbelly of the space station over the next few months. Expectations are that space buffs everywhere with an internet connection will see the first live streaming-video broadcast from the cameras on the company’s web portal early next year.

One of the cameras will offer sharp five-meter resolution stills of a broad 25-mile-wide (40 kilometer) swath of the globe, with pictures taken anywhere between 51°N and 51°S latitude (from England to Chile). The other camera can be pointed at 150 specific targets of interest per day. It has the capability of generating video with super-sharp Ultra-HD or 4K quality, and offers one-meter resolution.

Continue Learning: http://newswatch.nationalgeographic.com/2013/11/25/hi-def-space-selfies-coming-to-your-web-browser-soon/


Related articles

Saturday, November 23, 2013

Clock Ticking for 2018 Private Manned Mars Mission

By Mike Wall, Senior Writer | November 21, 2013 06:00am ET

An artist’s illustration of the manned spacecraft for the Inspiration Mars
mission to send two astronauts on a Mars flyby mission in 2017-2018.
Credit: Inspiration Mars
A private manned Mars mission won’t get off the ground as planned in January 2018 unless it secures the support of the federal government within the next few months, officials say.

The nonprofit Inspiration Mars Foundation aims to partner with NASA to send two astronauts on a flyby mission to the Red Planet in 2018. Inspiration Mars has little chance of making this launch date unless it receives assurances very soon from Congress and the White House that the mission will be a NASA priority, officials said.

“We have a just a couple of months to get some signals that would indicate that there’s serious interest developing,” Inspiration Mars founder Dennis Tito, who became the world’s first space tourist when he paid his own way to the International Space Station in 2001, told reporters during a teleconference Wednesday (Nov. 20). “So, not much time.” [Private Mission to Mars Explained (Infographic)]

Inspiration Mars’ “Mission for America” would launch a married couple on a 501-day flyby mission to the Red Planet in January 2018. The astronauts would not land on Mars, but would streak within 100 miles (160 kilometers) of its surface before beginning the long trek back to Earth.

The mission would lay the foundation for even more ambitious exploration efforts in the future and help cement the United States’ status as a global leader in science and technology by inspiring the next generation of researchers and engineers, Inspiration Mars officials say.

Continue Learning: http://www.space.com/23678-inspiration-mars-manned-mission-deadline.html

Wednesday, November 20, 2013

Martian Geology More Diverse Than Previously Thought

November 18, 2013
Image Caption: NASA's Mars Reconnaissance Orbiter is providing new spectral "windows" into the diversity of Martian surface materials. Here in a volcanic caldera, bright magenta outcrops have a distinctive feldspar-rich composition. Credit: NASA/JPL/JHUAPL/MSSS
Brett Smith for redOrbit.com – Your Universe Online

For years, scientists have thought of Mars as being made up of just one kind of rock – a very simplistic planet compared to the diverse geology of Earth.

However, a new study in the journal Nature Geoscience suggests there may be granite on Mars and puts forward a theory for how it could have formed there.

“We’re providing the most compelling evidence to date that Mars has granitic rocks,” said study author James Wray, an assistant professor of earth and atmospheric sciences at the Georgia Institute of Technology.

The study is based on the large deposit of feldspar, a mineral found in granite, recently found in an inactive Martian volcano. The location of the feldspar suggests protracted magmatic activity under the Martian surface could produce large-scale granite deposits, the study team said.

The Martian surface is mostly covered with basalt, the dark-colored rock commonly found throughout Hawaii. However, in the area around the Martian feldspar deposit, minerals rich in iron and magnesium and common in basalts are almost completely absent.

Continue Learning: http://www.redorbit.com/news/space/1113006200/mars-has-granite-111813/

Tuesday, November 12, 2013

Through the Wormhole: What Happened Before the Beginning?


Every cosmologist and astronomer agrees: our Universe is 13.7 billion years old. Using cutting-edge technology, scientists are now able to take a snapshot of the Universe a mere heartbeat after its birth.

Armed with hypersensitive satellites, astronomers look back in time to the very moment of creation, when all the matter in the Universe exploded into existence. It is here that we uncover an unsolved mystery as old as time itself - if the Universe was born, where did it come from? Meet the leading scientists who have now discovered what they believe to be the origin of our Universe, and a window into the time before time.

Wednesday, November 6, 2013

NASA Moon Probe Laser-Blasts Europe!

Photo Credit: esa.int

NASA’s LADEE probe entered lunar orbit last month ready to study the moon’s enigmatic exosphere — a region that holds some dusty secrets. But LADEE (which stands for Lunar Atmosphere and Dust Environment Explorer) isn’t your average satellite; it’s sporting a powerful laser and Europe is in its cross hairs!

Of course, this laser isn’t being used for nefarious (pew pew) purposes. It’s a brand new means of transmitting data through space, potentially revolutionizing how interplanetary communications will be carried out in the future.

It’s Like a Party in the Atmosphere!

This International Space Station Crew Earth image of storm clouds over California shows lighting as a white glow to the right of center. The yellow lit areas, beneath the clouds are the night lights from the highly populated areas of Los Angeles and San Diego. Image Credit: NASA
This International Space Station Crew
Earth image of storm clouds over
California shows lighting as a white
glow to the right of center. The yellow
lit areas, beneath the clouds are the
night lights from the highly populated
areas of Los Angeles and San Diego.
Image Credit: NASA
Ever attend a wild party with flashing lights and loud music that snowballs into a dazzling moment worth remembering? That’s something like how scientists describe the chain reactions in our atmosphere that lead to lightning. In September, researchers began using the International Space Station as a platform to study the mysterious cosmic catalyst and consequence of lightning, which may actually have origins more explosive than you might guess.

The Space Test Program-Houston 4-FireStation (STP-H4-FireStation) investigation, also simply known as FireStation, will orbit the Earth for a year attached to the outside of the space station. FireStation is sponsored by NASA and the National Science Foundation in partnership with the U.S. Department of Defense and its Space Test Program. This instrument collects data as it flies over thunderstorms, taking aim at the exciting energy exhibit to help scientists answer burning questions involving the relationship between lightning and gamma rays.

“Somewhere in the atmosphere momentarily there’s just an incredible amount of energy release and what happens in that region is something of a witch’s brew,” said Doug Rowland, principal investigator for FireStation at NASA's Goddard Space Flight Center in Greenbelt, Md. “You get antimatter created in the Earth’s atmosphere during this interaction, you get energetic neutrons that basically you never see in the quiet atmosphere, that you only associate with nuclear reactions, that are happening in our atmosphere whenever these things go off. That’s one of the first fundamental science reasons [to study this phenomenon]—it’s part of our planet; we don’t understand it; we want to understand it.”

Continue Learning:

http://www.nasa.gov/mission_pages/station/research/news/FireStation/index.html#.UnpKgPmKK-1
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NRL space test program experiments ship to Japan for flight to the ISS (phys.org)
NASA Has a 622 Mbps Data Connection - to the Moon (nasa.gov)
Climate models show potential 21st century temperature, precipitation changes (sciencedaily.com)