By Irene Klotz PARIS (Reuters) - The European Space Agency signed final contracts with Thales Alenia Space Italy for work on a pair of missions to assess if the planet Mars has or ever had life, officials said at the Paris Airshow this week. Until last year, the ExoMars program was a joint project between ESA and the U.S. space agency NASA. But NASA dropped out, citing budget problems. ...

By Deborah Zabarenko WASHINGTON (Reuters) - NASA called on backyard astronomers and other citizen-scientists on Tuesday to help track asteroids that could create havoc on Earth. The U.S. space agency has already identified 95 percent of the potentially planet-killing NEOs - near Earth objects - with a diameter of .62 miles or more, a size comparable to the space rock many scientists believe wiped out the dinosaurs some 65 million years ago. ...

By Axelle du Crest and Valerie Parent PARIS (Reuters) - French start-up company Ynsect has identified a cheap, nourishing and locally sourced alternative to soybeans as a vital source of protein in animal feed. The clue is in its name. Ynsect is not alone in looking to invertebrates to meet a jump in demand for meat and fish, and so for feed, in coming decades. Black soldier flies, common housefly larvae, silkworms and yellow mealworms were named as among the most promising species for industrial feed output in a report last month by the FAO, the United Nations food agency. ...

(Reuters) - An airplane entirely powered by the sun landed in Washington on Sunday after a flight from St. Louis, the next-to-last leg of a journey across the United States intended to boost support for clean energy technologies. The Solar Impulse landed at Dulles International Airport outside Washington at 12:15 a.m. EDT, organizers said in a statement. It will remain in the U.S. capital until it takes off for New York in early July for the last leg of its historic trip. ...

By Ben Hirschler LONDON (Reuters) - AstraZeneca has chosen a science park on the southern outskirts of Cambridge, England, next to the world-renowned Addenbrooke's Hospital, for its new $500 million global headquarters and research center. Property industry sources told Reuters last month that the Cambridge Biomedical Campus (CBC) was the most likely site for the new facility, which will house some 2,000 employees - a decision confirmed by the drugmaker on Tuesday. Transplanting the heart of the company to the university city is the centerpiece of a $2. ...

Sexually conservative men are more swayed by sexual images than more adventurous dudes, according to a new study that might help explain why the sexually conservative, paradoxically, tend to take sexual risks.

Nearly one in four people who suffer a stroke experiences symptoms of post-traumatic stress disorder (PTSD) during the year following the event, according to a new study.

Yes, mom may really be pushing you into marching band because she always wanted to be drum major. New research finds that, consistent with what kids may believe, parents really do hope to live out unfulfilled ambitions through their children.

The robotic European cargo ship Albert Einstein was opened Tuesday morning (June 18) at the International Space Station, a day late because of concerns that mold may have grown inside the vehicle, NASA officials said.

A new 1.3-billion-pixel image from NASAs Mars rover Curiosity allows viewers to zoom in and investigate part of the Red Planet in incredible detail.