The Petersburg Post
Top News Stories for Friday, May 7th 2021
Friday, May 7th, 2021 -
Elon Musk said SpaceX "might try to refly SN15 soon," after a Starship prototype's Wednesday landing. It takes SpaceX one step closer to creating a fully reusable rocket that can fly to orbit and back. See more stories on Insider's business page Elon Musk on Friday said his aerospace company SpaceX may attempt another blast off of its fifth Starship rocket soon, following its successful landing on Wednesday. ...
Source: businessinsider.com
Friday, May 7th, 2021 -
By Jonathan Amos BBC Science Correspondent Debris from a Chinese rocket is expected to fall back to Earth in an uncontrolled re-entry this weekend. The main segment from the Long March-5b vehicle was used to launch the first module of China's new space station last month. At 18 tonnes it is one of the largest items in decades to have an undirected dive into the atmosphere. The US on Thursday said it was watching ...
Source: bbc.com
Friday, May 7th, 2021 -
Like many owls, it was probably a nighttime predator. A tiny, meat-eating dinosaur had superb low-light vision and hearing that was likely as good as an owl's. And like an owl, the wee dinosaur probably used those exceptional abilities to stalk and catch its desert prey under the cover of darkness. Owl-like Shuvuuia (shu-VU-ya) was a theropod — a three-toed and bipedal carnivorous dinosaur. There's only one known ...
Source: livescience.com
Friday, May 7th, 2021 -
Sharks are known for their long-distance migrations – across thousands of kilometers – but what's not clear is exactly how they navigate. An interesting new experiment involving swimming pools and magnetic fields may give us some big hints, however. Knowing that sharks are sensitive to electromagnetic fields , researchers ran tests involving 20 juvenile bonnethead ( Sphyrna tiburo ) sharks , captured in the ...
Source: sciencealert.com
Friday, May 7th, 2021 -
Scientists in South Korea have achieved a major milestone in physics – and one pursued by researchers in the field for decades – by generating a record-breaking ultra-high intensity laser. The pulse intensity of over 10 23 W per cm sq is the result of a highly advanced optics system that tightly focused the beam on a minuscule target, and opens up entirely new possibilities in research fields ranging from ...
Source: newatlas.com
Thursday, May 6th, 2021 -
Methane, the main ingredient in natural gas, is a larger climate problem than the world anticipates, and cutting its emissions will be crucial to slow global warming, a new United Nations report warns. The greenhouse gas is many times more powerful than carbon dioxide at warming the planet, and its concentration in the atmosphere is increasing faster than at any time since record keeping began in the 1980s. Methane ...
Source: theconversation.com
Thursday, May 6th, 2021 -
Latest models project a bumpy road with big risks. A few years ago, an ice-sheet model grabbed attention when it projected much faster losses of Antarctic ice and, subsequently, faster sea level rise. Understanding how quickly Antarctica dumps ice into the ocean is the biggest issue in sea level science—the current range of possibilities is huge and includes remarkable rates of sea level rise that continue for ...
Source: arstechnica.com
Thursday, May 6th, 2021 -
Two teams have demonstrated new degrees of quantum measurements in micron-sized metal drums One of the more irksome results of quantum mechanics is the revelation that reality is largely a persistent illusion. Quantum mechanics is not merely a theory of the microscopic: all matter is fundamentally quantum—it just so happens that weird quantum effects are hard to observe in anything bigger than a few atoms. Like ...
Source: scientificamerican.com