A method to measure the mass of a cell with high precision, without exposing it to vacuum, is published in Nature. (BBCNews)
The Japanese spacecraft Hayabusa ignites one of its four rocket engines to begin its flight back to Earth. (SpaceflightNow)
The BlackBerry network, supporting the transfers of E-mail messages, is interrupted for a period of multiple hours, starting around midnight UTC. (Reuters)
A study on the effect of global warming on hurricanes in the Atlantic Ocean is published in Geophysical Research Letters. Its authors believe an increase in wind shear created by a warmer climate may hinder the formation of hurricanes, similar to the El Niño effect. (Reuters)
Results from a preliminary study are made public, using the Gravity Probe B data. They provide confirmation for the geodetic effect predicted by general relativity. The overall margin of error on the measurement is estimated to be below one percent. (BBCNews)
Google reaches a deal with DoubleClick to buy the company for 3.1 billion United States dollars. (The New York Times)
Astrophysical Journal accepts for publication a study on HD209458's "Hot Jupiter" planet, that shows compelling evidence for water vapor in its atmosphere. If confirmed, this would be the first extrasolar planet shown to have water. (SpaceRef.com)
CERN and Fermilab engineers announce that a failure of a magnet within the LHC particle accelerator may delay the start of the experimental campaign of the project. (Reuters)
April 2007 in science Wikipedia (Text) CC BY-SA
