[Tuesday, April 1, 2008] This month, NASA begins the most extensive field campaign ever to investigate the chemistry of the Arctic's lower atmosphere. The mission is poised to help scientists identify how air pollution contributes to climate changes in the Arctic.

[Wednesday, April 2, 2008] A plethora of latest results from the Hinode solar observatory contains a wealth of new discoveries. This includes the discovery of a source of the slow solar wind and the observation of a superhot micro flare.

[Wednesday, April 2, 2008] Dendi Caldera, Ethiopia is featured in this image photographed by an Expedition 16 crew member on the ISS. The Dendi Caldera is located on the Ethiopian Plateau, approximately 86 kilometers to the southwest of Addis Ababa.

[Wednesday, April 2, 2008] Al Wadj Bank, Saudi Arabia is featured in this image photographed by an Expedition 16 crewmember on the International Space Station.

[Wednesday, April 2, 2008] These cellulose microfibers represent the oldest native biological macromolecules to have been directly isolated, examined biochemically, and visualized (without growth or replication) to date.

[Saturday, April 5, 2008] Looking for evidence of life on Mars or other planets? Finding cellulose microfibers would be the next best thing to a close encounter, according to new research from the University of North Carolina at Chapel Hill.

[Sunday, April 6, 2008] Flash back three or four billion years. Without warning, a meteor slams into the desert plains at over ten thousand miles per hour. With it, this violent collision may have planted the chemical seeds of life on Earth.

[Monday, April 7, 2008] A revolutionary laser technology being developed by scientists and engineers at the Harvard-Smithsonian Center for Astrophysics (CfA), with colleagues at MIT, will enable scientists to spot Earth-sized worlds in Earth-like orbits.

[Monday, April 7, 2008] Semien Mountains, Gonder, northern Ethiopia are featured in this image photographed by an Expedition 16 crewmember on the International Space Station.

[Wednesday, April 9, 2008] The significance of Waechtershaeuser's iron-sulfur world to the origin of life and the limits to its notional autocatalytic cycles are examined in kinetic simulations of the chain polymerization sequence

[Wednesday, April 9, 2008] Materials blasted into space from the surface of early Earth may preserve a unique record of our planet's early surface environment.

[Thursday, April 10, 2008] Michael R. Luther has been named deputy associate administrator for programs in NASA's Science Mission Directorate at NASA Headquarters in Washington. Ed Weiler, associate administrator for the directorate, made the announcement Wednesday.

[Friday, April 11, 2008] Scientists have developed a new way of determining the size and frequency of meteorites that have collided with Earth.

[Friday, April 11, 2008] "Will now have to do complicated maths to work out what time it is in Texas and Louisiana for Yuri's night phone calls."

[Sunday, April 13, 2008] "I have to go hit the road via snowmobile to get back to the McGill High Arctic Research Station (MARS) which is where we are staying. It is not far, but it is a bit cool right now -25C - which for this time of year is not too bad."

[Tuesday, April 15, 2008] Harrat Khaybar, Saudi Arabia is featured in this image photographed by an Expedition 16 crewmember on the International Space Station.

[Wednesday, April 16, 2008] The Near-Earth Object Program Office at NASA's Jet Propulsion Laboratory in Pasadena, Calif., has not changed its current estimates for the very low probability (1 in 45,000) of an Earth impact by the asteroid Apophis in 2036.

[Wednesday, April 16, 2008] NASA centers across America will roll out the green carpet April 22 to celebrate Earth Day and reporters are invited to hear first hand about the agency's contributions to understanding and protecting our environment.

[Wednesday, April 16, 2008] Research by University Professor Richard Peltier of physics reveals that the Earth's surface 700 million years ago may have been warmer than previously thought.

[Wednesday, April 16, 2008] "Here are a few more pictures and words for you regarding the CSA/McGill University Satellite system here at the CSA camp at Expedition Fiord on Axel Heiberg."

[Friday, April 18, 2008] Data from the VIRGO instrument on SOHO have been used to show that solar flares drive global oscillations in the Sun. This confirms a prediction made more than 30 years ago.

[Monday, April 21, 2008] Nicknamed ENDURANCE, for Environmentally Non-Disturbing Under-ice Robotic ANtartic Explorer, the $2.3 million project will send an autonomous underwater vehicle (AUV) to Lake Bonney for two field seasons, beginning in November 2008.

[Monday, April 21, 2008] The Antarctic deep sea gets colder, which might stimulate the circulation of the oceanic water masses. At the same time satellite images from the Antarctic summer have shown the largest sea-ice extent on record.

[Monday, April 21, 2008] In July 2006, researchers afloat in a dinghy on a mile-wide glacial lake in Greenland studied features of the lake and ice 40 feet below. Ten days later the entire contents of the lake emptied through a crack in the ice.

[Monday, April 21, 2008] ESA and Thales Alenia Space have signed a Euro 305 million [USD 485 million] contract to provide the first Sentinel-3 earth observation satellite, devoted to oceanography and land-vegetation monitoring, as part of the European GMES programme.

[Monday, April 21, 2008] The European Space Agency and Astriumhas signed a Euro 195 million [USD 310 million] contract to provide the first Sentinel-2 earth observation satellite, devoted to monitoring the land environment, as part of the European GMES programme.

[Tuesday, April 22, 2008] Boosted by the influence of a larger climate event in the Pacific, one of the strongest La Ninas in many years is slowly weakening but continues to blanket the Pacific Ocean near the equator.

[Tuesday, April 22, 2008] JAXA and NHK successfully captured a movie of the "Full Earth-Rise"*1 using the onboard High Definition Television (HDTV) of the lunar explorer "KAGUYA" (SELENE) on April 6, 2008 (Japan Standard Time).

[Tuesday, April 22, 2008] This view from the Apollo 11 spacecraft shows the Earth rising above the Moon's horizon. The lunar terrain pictured is in the area of Smyth's Sea on the nearside

[Tuesday, April 22, 2008] Data and expertise derived from ALOS will contribute a better formulation of measures to adapt to climate change threats in Latin America and the Caribbean, according to an agreement signed today between JAXA and the World Bank.

[Tuesday, April 22, 2008] Several new atlases of ocean wind patterns around the globe, based on data from NASA's QuikScat satellite, are benefiting a wide range of users, from those who sail the seas to those responsible for managing their precious resources.

[Tuesday, April 22, 2008] Word has it that a $400 million earmark for a climate research center is being prepared on behalf of Sen. Pete Domenici (R-NM) who is retiring.

[Wednesday, April 23, 2008] NASA will hold a media briefing Tuesday, April 29, at 1:30 p.m. EDT to discuss the latest research documenting changes in Earth's ecosystems using NASA remote-sensing data.

[Wednesday, April 23, 2008] The 1600 eruption of Huaynaputina in Peru had a global impact on human society, according to a new study of contemporary records by geologists at UC Davis.

[Sunday, April 27, 2008] Recently, the IARPC compiled member agency information about the Arctic environment in the Committee's latest report, Arctic Observing Network (AON): Toward a US Contribution to Pan-Arctic Observing.

[Sunday, April 27, 2008] We're down to 2 hour night watches - not really survival mode but an acknowledgement that 3 hours of concentration at night is too hard to sustain. Hallucination, green monkeys, out of focus compass readings sending the remaining neuron into a dozy spin.

[Monday, April 28, 2008] USGS is pursuing an aggressive schedule to provide users with electronic access to any Landsat scene held in the USGS-managed national archive of global scenes dating back to Landsat 1

[Tuesday, April 29, 2008] Recent research will give international scientists a close-up look at fluctuations that occurred in Antarctica's ice sheet and marine and terrestrial life as the climate cooled considerably between 20 and 14 million years ago.

[Tuesday, April 29, 2008] A study published in the advance online edition of Nature Geoscience links the pre-human stability to connections between carbon dioxide in the atmosphere and the breakdown of minerals in the Earth's crust.