Washington, Jan 15 : Sir Paul McCartney has teamed-up with his musician son James to make a new album.

After years living as a recluse, James is attempting to father''s footsteps and is getting plenty of help from the former Beatle.

"My son James plays guitar. We''re making a new album with him," Contactmusic quoted Macca, as saying on U. S. TV talk show The View.

Previously, James co-wrote a number of his dad''s solo songs, and joined him on tour back in 2005.

Washington, Jan 15 : A team of scientists has designed systems that make energy-efficient water purification possible, by harnessing the power of osmosis to harvest freshwater from non-potable sources, including seawater and generate electricity from low-temperature heat sources.

The systems were designed by Robert McGinnis, a Yale University doctoral student and his advisor Menachem Elimelech, Chair of Chemical and Environmental Engineering.

Washington, Jan 15 : NASA has successfully completed its third round of testing for a technology development engine that may help astronauts to safely return to the surface of the Moon.

The goal of these tests is to reduce risk and advance technology for a reliable and robust rocket engine that could enable America''s next moon landing.

The tests by Pratt and Whitney Rocketdyne in West Palm Beach, Florida, helped gather data on this concept engine that might play a role in the next stage of human exploration of the moon.

The goal of a lunar lander descent engine is to slow the vehicle so astronauts can land safely.

Washington, Jan 15 : A team of scientists has said that the earliest known braincase of a shark-like fish has shown that some assumptions about the early evolution of vertebrates are "completely wrong."

According to a report in National Geographic News, the specimen is of a 415-million-year-old Ptomacanthus, which is only the second known example of a braincase from an Acanthodian, a long-extinct group of fossil fish.

Washington, Jan. 15 : In an article for the Washington Post, noted journalist Bob Woodward says that there is actually a lot that President-elect Barack Obama can learn from the troubled presidency of George W. Bush.

Having written four books on Bush, totaling 1,727 pages, Woodward says that there are actually ten lessons that Obama can take from his predecessor's eight-year-long presidency.

1. Presidents set the tone. Don''t be passive or tolerate virulent divisions.

Washington, Jan 15 : U. S. President-elect Barack Obama has hired the same interior designer as American actors Cindy Crawford and Steven Spielberg to decorate the White House rooms.

Michael S. Smith, from California, has been working on 10-year-old Malia and 7-year-old Sasha''s bedrooms, and his vision is to make the rooms more kid-friendly.