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Orbit in Biological News

August 2009 Geology and GSA Today media highlights

... season as controlled by dynamics of Earth's orbit around the sun. Short-term variations in calcite ... thought to have been driven by changes in Earth's orbit with relation to the sun. Horton and Poulsen ... brought about by cyclic variations in Earth's orbit are minuscule. It is only with large ...

ESA to provide essential launch control services to EUMETSAT

... services during the critical launch and early orbit phase (LEOP), which involves moving the satellite ... after separation from the launcher to its final orbit position 36,000 kilometres above the Earth. ... contract for the MSG-3 and 4 Launches and Early orbit Phase following the very successful LEOP services ...

ESA's Earth observation missions: Sharing teams and facilities boosts efficiency

... once a satellite was launched and the critical Launch and Early orbit Phase was complete, the Flight Control Team moved out of ESOC's large Main ... segment - the ground-based infrastructure that supports the satellite in orbit - is being developed as part of the GMES (Global Monitoring for ...

GOCE's electric ion propulsion engine switched on

... gravity measurements depends on finely controlling the satellite's orbit and speed. The push from the thruster must be just enough to compensate ... of operational checks since the end of the critical Launch and Early orbit Phase on 20 March. Prior to commissioning the electric ion propulsion, ...

Planetary 'first family' discovered by astronomers using Gemini and Keck Observatories

... 10 times the mass of Jupiter. As in our solar system, these giant planets orbit in the outer regions of this system--at roughly 25, 40, and 70 times the ... the comets of the Kuiper Belt objects of our solar system just beyond the orbit of Neptune at 30 times the Earth-Sun distance. In some ways, this ...

Planetary "first family" discovered by astronomers using Gemini and Keck Observatories

... 10 times the mass of Jupiter. As in our solar system, these giant planets orbit in the outer regions of this system--at roughly 25, 40, and 70 times the ... the comets of the Kuiper Belt objects of our solar system just beyond the orbit of Neptune at 30 times the Earth-Sun distance. In some ways, this ...

Send your name around the Earth on NASA'S Glory mission

... everyone to take part in the science mission and place their names in orbit for years to come. The Web site, where participants can submit their ... in June 2009 from Vandenberg Air Force Base in California. Glory will orbit as part of the Afternoon Constellation, or "A-Train," a series of ...

Crew oxygen for ISS loaded on Jules Verne

... Transfer Vehicle has also been successfully loaded with oxygen. In orbit this will be transferred to the International Space Station's atmosphere ... (ISS) and, once docked, to contribute to the Station's attitude and orbit control, including re-boost of the whole space complex. Already around 860 ...

Final preparations for first human-rated spacecraft to be lauched from Europe's Spaceport

... The fact that for the first time drinking water will be carried into orbit by a European cargo spaceship for the ISS crew brings a great sense of ... that cargo off-gassing will not alter the quality of the air brought into orbit and then mixed with the Space Station atmosphere. Final steps ...

NASA technology helps predict and prevent future pandemic outbreaks

... With the help of 14 satellites currently in orbit and the National Aeronautics and Space Administrations (NASA) Applied ... a cost-effective method for operational agencies since they are already in orbit and in use by scientists to collect data about the Earths atmosphere. ...

Shuttle brings space-grown strep bacteria back for study

... Expression of Genes in Space), a project to grow the bacteria in orbit and bring them back home frozen in zero-g mode for study. Eight years later, six tightly sealed vials of the bugs were launched into orbit in a cold-storage experiment locker that kept them inactivated at about 39 ...

When palm trees gave way to spruce trees

... march to a cooler world was gradual in northern latitudes, it was inevitable according to Dr. Greenwood. "Changes in the earth's position in its orbit were leading a much greater seasonal range in radiation for polar regions and, overall, heat was becoming more concentrated in the tropics, largely ...

March launch planned for ESA's gravity mission

... many firsts in terms of design and use of new technology to map the Earth's gravity field as never before. The satellite has been designed to orbit just 250 km above the surface of the Earth its unusual aerodynamic shape cutting through of what remains of the atmosphere. This low-orbiting ...

New satellite techniques for looking at climate change

... Research, Great Britain's governmental department responsible for the protection and expansion of forests. Another Earth Observation satellite in orbit equipped with the polarimetric mode is Canada's Radarsat-2. Dr Ridha Touzi, a Senior Research Scientist at the Canada Centre for Remote Sensing, ...

Arctic heats up more than other places

... loss over the last few decades is highly unusual compared to events from previous thousands of years, especially considering that changes in Earth's orbit over this time have made sea-ice melting less, not more, likely. Sustained warming of at least a few degrees (more than approximately 4 to 13F ...

Study: Did early climate impact divert a new glacial age?

... at regular 100,000-year intervals during the last million years. Each glacial period has been paced by regular and predictable changes in the orbit of the Earth known as Milankovitch cycles, a mechanism thought to kick start glacial cycles. "We're at a very favorable state right now for ...

ESA satellites flying in formation

... to spend extra hydrazine for Envisat. For ERS, the manoeuvre to place it in tandem position is such that the satellite drifts back to its nominal orbit without additional manoeuvre after the tandem campaign," ESA Mission Planner Manager Sergio Vazzana said. ...

Measuring water from space

... on how mass is distributed on Earth, and affects the speed of satellites in orbit. By closely monitoring the speed of both satellites, as they orbit the planet, it is possible to measure the change in mass of water or ice in different regions. The method has shown that the Greenland ice sheet ...

GOCE launch delayed until 2009

... The Russian authorities responsible for the Rockot launcher that shall carry ESA's GOCE Earth Explorer satellite into orbit have completed the investigation of a failure in the guidance and navigation system of the launcher's Upper Stage (Breeze KM). The anomaly was ...

August 2008 Geology and GSA Today media highlights

... with warming and cooling by approximately 1.5 degrees Celsius about every 18,000 years, which is thought to be caused by variations in Earth's orbit around the sun. These climate swings are similar to those that caused the more recent ice ages, but Burgess et al. show that, at that time, there was ...

Satellites illuminate pollution's influence on clouds

... a single instrument alone." The five satellites NASA's Aqua, Aura, CloudSat and CALIPSO and the French Space Agency's PARASOL of the A-Train orbit only eight minutes apart and can be thought of as an extended satellite observatory, providing unprecedented information about clouds, aerosols and ...

Key molecule discovered in Venus's atmosphere

... ozone in the planets atmosphere. Venus Express has shown that the amount of hydroxyl at Venus is highly variable. It can change by 50% from one orbit to the next and this may be caused by differing amounts of ozone in the atmosphere. Ozone is an important molecule for any atmosphere, because it ...

NASA launches airborne study of arctic atmosphere, air pollution

... cover. "NASA has invested a lot of resources in satellites that can be of value for diagnosing effects of climate change, Jacob said. "Satellites orbit over poles with good coverage and good opportunity, but you really need to have aircraft observations supporting those to make good interpretations ...

AGU Journal Highlights -- March 19, 2008

... and swept into Jupiters magnetosphere. This torus is tilted with respect to Jupiter's equator, so at times Io is below or above the toruss core. Ios orbit also crosses Jupiters magnetic field lines, coupling the moon and the planets upper atmosphere. This generates an electric current that ultimately ...

Has the mystery of the Antarctic ice sheet been solved?

... cooling using the forams. They believe the prime suspect is a gradual reduction of CO2 in the atmosphere, combined with a trigger time when Earths orbit around the sun made Antarctic summers cold enough for ice to remain frozen all year round. ...

Predicting the radiation risk to ESA's astronauts

... when you close your eyes as a result of interactions with your eye," he says. The frequency of these flashes depends on where the ISS is in its orbit and the level of solar activity. There was a solar storm whilst Fuglesang was in space. "That night we were told to sleep in the more shielded ...

New radar satellite technique sheds light on ocean current dynamics

... from which the SAR signal scatters back to orbit. The initial two values are well known particularly for Envisat, with its very stable satellite orbit and attitude and can be simply subtracted to extract the useful sea surface velocity information. Chapron first demonstrated the concept in 2005 ...

Evolution tied to Earth movement

... much previous discussion of how climate affected human evolution involves global climate changes, such as those caused by cyclic changes in Earths orbit around the sun, and not local and regional climate changes caused by East Africas rising landscape. A Force from within the Earth The ...

Woods Hole Research Center debuts new image mosaic that will strengthen global forest monitoring

... providers will follow suit. Masanobu Shimada, who is the ALOS Science Project Manager at JAXA, states, We are very pleased to have ALOS in orbit and operating exceptionally well. One of the main objectives of the ALOS mission is to support global forest monitoring needs. We are excited to see ...

Mars Express -- 5000 orbits and counting

... by pointing the crafts high-gain antenna at the planet and recording the echoes. It has also been used to measure small changes in the spacecrafts orbit caused by gravity anomalies. Some of the most marked increases in surface gravity have been found over the volcanic Tharsis ridge, indicating a ...

Cassini on the trail of a runaway mystery

... and this process is probably a major factor in determining the distinct brightness boundaries. "The side of Iapetus that faces forward in its orbit around Saturn is being darkened by some mysterious process," said John Spencer, Cassini scientist with the composite infrared spectrometer team from ...

NASA celebrates a decade observing climate impacts on health of world's oceans

... GREENBELT, Md. -- The NASA-managed Sea-viewing Wide Field-of-view Sensor (SeaWiFS) instrument settled into orbit around Earth in 1997 and took its first measurements of ocean color. A decade later, the satellite's data has proved instrumental in countless ...

NASA celebrates a decade observing climate impacts on health of world's oceans

... GREENBELT, Md. -- The NASA-managed Sea-viewing Wide Field-of-view Sensor (SeaWiFS) instrument settled into orbit around Earth in 1997 and took its first measurements of ocean color. A decade later, the satellite's data has proved instrumental in countless ...

Life on Mars 'pregnancy test' successfully launched

... DC*-- Key components of a new approach to discover life on Mars were successfully launched into space Friday as part of a twelve-day, low-Earth orbit experiment to assess their survivability in the space radiation environmenta prelude future journeys to Mars. The new approach is based on ...

Researcher to study astronaut bone loss for space biology agency

... rats will be treated with IGF-1 and reloaded on a regular cycle –?much as astronauts might regularly engage in weight-bearing exercise while in orbit –?in order to stimulate integrin production and enhance or recover IGF-1 receptor function. The IGF-1 will act as a signaling device to allow Long to ...

Satellites shed light on global warming

... down to under a nanosecond to calculate the distance to the planet below to a maximum accuracy of two centimetres. ESA has had radar altimeters in orbit since July 1991, when ERS-1 was launched, which was followed by ERS-2 in 1995 and Envisat in 2002 and will continue to launch radar altimeters with ...

Reef warns of sea level rise

... The cause of the sudden global warming leading to the end of the ice-ages is thought to be due to changes in the elliptical nature of the Earth's orbit combining with other factors, such as variations in its tilt or wobble. During the ice ages atmospheric CO2 was around 180 parts per million, ...

Nanotubes used for first time to send signals to nerve cells

... in semiconductor chips, carbon nanotubes have been proposed as the basis for everything from elevator cables that could lift payloads into Earth orbit to computers smaller than human cells. Thin films of carbon nanotubes deposited on transparent plastic can also serve as a surface on which cells ...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

... phenomena are the driving force in global climate change. "Next we are hoping for follow-up satellite missions, in particular from geostationary orbit to monitor atmospheric pollution, which has a strong diurnal variation and thereby determine objectively the changing atmospheric composition." ...
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