The detection of gravitational waves scooped the 2017 Nobel physics prize. But in a Perimeter Institute lecture Erik Verlinde proposes a rather different theory of gravity
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Scientists say Milky Way’s Sagittarius A* has been more active in recent months. Unseeable and inescapable, black holes already rank among the more sinister phenomena out in the cosmos. So it may come as disconcerting news that the supermassive black hole at the centre of the Milky Way appears to be growing hungrier.
Inside Swamp Works, the NASA Lab Learning to Mine the Moon
Swamp Works is one of the few places in the world with an enormous test bed that mimics the conditions on the lunar surface. Inspired by Lockheed Martin’s Skunk Works, the lab responsible for several major aviation breakthroughs, Swamp Works was designed to bring the same agile spirit to NASA. And it’s where Schuler and about a dozen other researchers are prototyping robots to explore and mine the moon. In particular, they’re testing the Regolith Advanced Surface Systems Operations Robot, or Rassor, a four-wheeled contraption about the size of a motorcycle but only a fraction of the weight.
What to expect from NASA in 2020 – a NASA video sneak peeks us into projects to be done this year including a search for aliens
NASA’s main projected aimed for this year included ” Launching Americans from U.S. soil, sending a new rover to Mars and continuing to prepare for human missions to the Moon are just a few of the things NASA has planned for 2020.“
Extraterrestrial Doesn't Exist. Does it? Latest Opinion by scientist makes us question again.
We hardly think of Extraterrestrial life in terms other than life forms based on Earth, that is, we have a hard and non-flexible definition of life that is based on carbon-based organisms that we seldom look out for other forms of “life”. Extraterrestrial life could be of the form that we have never seen on Earth, made of elements that are not even available on Earth. Or in some cases, as the Labeled release experiment from 1970 showed, we could have Earth-like microbial life. It is always, I believe, wrong to generalize life only based on the only experiences we have had so far.
The Millennium Definitions Of Physics
Look at what happens around us. A child who smiles, a nightingale that sings, an ily that opens: all move. Every shadow, even an immobile one, is due to moving light.
Every mountain is kept in place by moving electrons. Every star owes its formation and its shine to motion of matter and radiation. Also, the darkness of the night sky* is due to motion: it results from the expansion of space.
What’s the point of theoretical physics?
You don’t have to be a scientist to get excited about breakthroughs in theoretical physics. Discoveries such as gravitational waves and the Higgs boson can inspire wonder at the complex beauty of the universe no matter how little you really understand them.
Explainer: Quarks
Physicists today believe that matter is made up of twelve fundamental particles – quarks and leptons – that have no substructure and cannot be broken down into smaller particles. Quarks and leptons interact via four forces to make the universe we know today.