A wild new theory suggests there may be another "anti-universe," running backward in time prior to the Big Bang. The idea assumes that the early universe was small, hot and dense — and so uniform th… [+5744 chars]
<li>Delany, M. E. & Bazley, E. N. Acoustical properties of fibrous absorbent materials. Appl. Acoust.3, 105116 (1970). Google Scholar </li><li>Tang, X. & Yan, X. Acoustic energy absorption… [+8587 chars]
A challenge in materials design is that in both natural and manmade materials, volume sometimes decreases, or increases, with increasing temperature. While there are mechanical explanations for this … [+5517 chars]
A massive release of greenhouse gases, likely triggered by volcanic activity, caused a period of extreme global warming known as the Paleocene-Eocene Thermal Maximum (PETM) about 56 million years ago… [+6272 chars]
Quantum computers are getting bigger, but there are still few practical ways to take advantage of their extra computing power. To get over this hurdle, researchers are designing algorithms to ease th… [+5017 chars]
NASAs Ingenuity Mars Helicopter will keep making trips at least through September. The tiny chopper hitched a ride to Mars on the Perseverance Rover in the summer of 2020 and landed on the planets… [+2003 chars]
A slow-moving central section of the 800-mile San Andreas Fault line in California could play host to much larger earthquakes than previously thought, according to a new study. Situated between Park… [+12360 chars]
Eugene Parker, the pioneering astrophysicist whose name graces NASA's Parker Solar Probe mission, died Tuesday (March 15) at age 94. Parker's work focused on understanding the sun. In a key contribu… [+5379 chars]
