Best of Last Week – Pondering future of inflation theory, an enclosed tube maglev and arguing about contacting aliens
Water in the solar system predates the Sun
Water was crucial to the rise of life on Earth and is also important to evaluating the possibility of life on other planets. Identifying the original source of Earth's water is key to understanding how life-fostering ...
Physicist suggests some types of wormholes may stay open long enough to send a photon through
Time reversal findings may open doors to the future
(Phys.org)—Imagine a cell phone charger that recharges your phone remotely without even knowing where it is; a device that targets and destroys tumors, wherever they are in the body; or a security field ...
Physics team proposes a way to create an actual space-time crystal
Squeezed laser will bring gravitational waves to the light of day
A quantum phenomenon allows detectors which sense oscillations of space-time to measure with 50 percent more accuracy.
Metamaterials used to mimic the Big Crunch
Physicists discover new way to visualize warped space and time
(PhysOrg.com) -- When black holes slam into each other, the surrounding space and time surge and undulate like a heaving sea during a storm. This warping of space and time is so complicated that physicists ...
When it comes to mammals, how big is too big?
(Phys.org) —Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales, ...
Every dollar must go to bridge gaps to Mars, NASA says (Update)
Setting foot on Mars by the 2030s is human destiny and a US priority, and every dollar available must be spent on bridging gaps in knowledge on how to get there, NASA's chief said Monday.
Planners for hypersonic SpaceLiner craft propose a 50 year timeline
Vesta: Large impacts of asteroids may have transferred carbonaceous material to the protoplanet and inner solar system
The protoplanet Vesta has been witness to an eventful past: images taken by the framing camera onboard NASA's space probe Dawn show two enormous craters in the southern hemisphere. The images were obtained ...