Science Dec 10 Rosetta spacecraft finds water on Earth didn’t come from comets Where did Earth's water come from? For years, scientists believed comets could have delivered it to Earth. But the Rosetta spacecraft revealed today that is not the case.
Science Dec 10 7 things every woman should know before freezing her eggs As women age, the likelihood of chromosomal abnormalities climbs, and with it, the risk of miscarriage, birth defects or disorders that makes conceiving more difficult. Egg freezing is seen by some as a way to stop the biological clock, expand…
Science Dec 08 NASA’s New Horizons probe wakes up in time to photograph Pluto in 2015 On Saturday night at 9:30 p.m. ET, an alarm clock went off for NASA’s New Horizon probe, 2.9 billion miles away from Earth. At 9:52 p.m., the piano-size spacecraft sent a message back to Johns Hopkins Applied Physics Laboratory…
Science Dec 05 NASA’s Orion splashes down in the Pacific after flawless test flight Watch the Orion spacecraft launch live here on the PBS NewsHour.
Science Dec 04 Zig-zag on ancient shell may rewrite art and human history On a prehistoric white shell fossil from the island of Java, tiny zig-zag shaped scratches may etch out the beginning of art history, and rewrite our human history. A study published in Nature this week found that the markings on…
Science Dec 03 Photos: NASA prepares Orion to send humans to Mars It will take a big rocket to get to Mars, and a big space capsule to protect humans during the months-long journey. It also takes decades of testing and development to plan a mission that will take humans…
Nation Dec 01 Bill Cosby resigns from Temple University board In the wake of a string of rape and assault allegations, 77-year-old entertainer Bill Cosby resigned from his position on the Temple University’s board of trustees Monday. Cosby has been on the board at his alma mater…
Science Dec 01 What does the salty sea air put in our clouds? Scientists are trying to find out how the ocean's chemistry changes clouds. It could even affect climate change.
Science Nov 28 8 things you didn’t know about Alan Turing Alan Turing is hailed as the father of the computer, single-handedly helping the Allies defeat the Germans by cracking the Nazi Enigma code. But he was also a gifted athlete, a sloppy dresser and defiant in the face of the…
Science Nov 25 How seeing a black hole’s shadow will tell us if Einstein was right Black holes are some of the most exotic objects in our universe. But how do you see something that, by definition, you can't see? The answer will take a telescope the size of the Earth.