List of All Articles with Tag 'ac'

Billionaire investor Bill Ackman said President Joe Biden risks tarnishing his political reputation by seeking a second term

Charles Barkley thinks the Warriors are done.

The US economy grew at an even faster pace in the third quarter than originally estimated, reflecting upward

Poland’s largest listed company Orlen SA tumbled the most in nearly two years on plans to force the

President-elect Javier Milei let slip his choice of economy minister during a radio interview Wednesday morning, saying that

German Khan, co-founder of investment firm LetterOne, lost a court challenge against European Union sanctions over his alleged

Billionaire investor Bill Ackman is betting the Federal Reserve will begin cutting interest rates sooner than markets are

Scientists have cooked up the "alien haze" of distant planets, in an effort to help with the search for alien life. The haze is a simulation of the hazy skies that appear on water-rich exoplanets, or worlds outside of our solar system. That haziness can get in the way of observations of those planets, making it difficult to understand what is happening there. Haze can also affect conditions on the planet themselves. If the atmosphere has hazes or other particles then it can drastically change the temperature, amount of light an other factors – some of which might be make or break for alien life there. Scientists hope the homemade haze will let them better understand the atmospheres of other planets, and model how the planets themselves form and grow. They could allow us to better understand how the have distorts our picture of those planets – distortions that could give us the wrong understanding of the makeup of their atmospheres. Getting that wrong could mean potentially missing habitable worlds, for instance. The observations are used to come up with the estimates about the temperature and atmospheric conditions that are then used to determine whether a planet might be able to host alien life. “The big picture is whether there is life outside the solar system, but trying to answer that kind of question requires really detailed modeling of all different types, specifically in planets with lots of water,” said co-author Sarah Hörst, from Johns Hopkins University. “This has been a huge challenge because we just don't have the lab work to do that, so we are trying to use these new lab techniques to get more out of the data that we’re taking in with all these big fancy telescopes.” The team cooked up the haze using a custom-designed chamber in Hörst’s lab. The haze they made is formed out solid particles, suspended in gas, which changes how light interacts with the gas itself. To test the hazes they made, scientists shot ultraviolet light through them, measuring how much they absorbed and reflected. They found that hate haze matched the chemical signatures of a well-studied exoplanet. Scientists hope to develop yet more hazes, with different gas mixtures, that will let them better understand different atmospheres. The work is described in a new paper, 'Optical properties of organic haze analogues in water-rich exoplanet atmospheres observable with JWST', published in the journal Nature Astronomy. Read More SpaceX rockets are punching holes in atmosphere, causing blood-red ‘auroras’ Chinese rocket that slammed onto Moon may have carried mysterious undisclosed payload Nasa’s ‘Message in a Bottle’ will send your name into space

By Nivedita Bhattacharjee BENGALURU NASA will train an Indian astronaut for a voyage to the International Space Station

German inflation eased more than forecast in November on retreating energy and travel costs, putting the European Central

Kacey Musgraves and Cole Schafer broke up, Mark Cuban is selling the Mavericks, Florida State is back in the CFP top four and more in the Roundup.

For traders and investment bankers inside Barclays Plc, the message came from on high: Their unit is sucking