News That Matters

Tag: model

Scientists use 3D climate model to narrow search for habitable exoplanets

Scientists use 3D climate model to narrow search for habitable exoplanets

Science
Nov. 14 (UPI) -- For the first time, scientists used a 3D climate model that incorporates photochemistry to study the habitability of exoplanets surrounding M dwarf stars. The findings -- published Thursday in the Astrophysical Journal -- could help planetary scientists know what to look for when surveying potentially habitable exoplanets. Researchers adopted a 3D climate model, originally developed by scientists at the University of Colorado-Boulder for the study of Earth's climate, to simulate the atmospheric dynamics of faraway planets -- specifically exoplanets orbiting M dwarf stars. These stars, also called red dwarfs, give off relatively small amounts light and heat. Originally, scientists thought M dwarfs were rare, and because they're relatively cool, scientists assumed planetar...
The methane-filled lakes on Saturn’s moon Titan are explosion craters, model predicts

The methane-filled lakes on Saturn’s moon Titan are explosion craters, model predicts

Science
Sept. 9 (UPI) -- According to a new model developed by planetary scientists in Italy and the United States, many of the methane-filled lakes on Titan were likely formed after explosions of warming nitrogen left dozens of empty craters dotting the surface of Saturn's largest moon. Outside of Earth, Titan is the only planetary body in the solar system known to host stable liquid on its surface. While Earth hosts bodies of water, Titan's lakes are filled with liquid methane and ethane. On Earth, methane and ethane typically exist in gas form, but subzero temperatures on Titan allow the hydrocarbons to exist in liquid form. Previous models suggested Titan's lakes were formed over thousands of years as the liquid methane and ethane precipitated by Titan's clouds dissolving the moon's bedrock ...
Declining fertility led to Neanderthal extinction, new model suggests

Declining fertility led to Neanderthal extinction, new model suggests

Science
May 31 (UPI) -- To better understand the decline of Neanderthals, researchers in France developed a population model and used simulations to determine which demographic factors had the largest effect on Neanderthal numbers. Their analysis, published this week in the journal PLOS One, showed declining fertility offers the likeliest explanation for the disappearance of the Neanderthals. Scientists have previously suggested the Neanderthal's extinction is best explained by catastrophe, like climate change or the spread of disease. But with limited empirical evidence, such hypotheses are difficult to test. Neanderthal remains suggest the hominin species died out over a period of 4,000 to 10,000 years. To better understand this decline, researchers built a model and ran simulations to test th...
Jack Whitehall ‘spotted on date’ with STUNNING German lingerie model Melinda London, 20

Jack Whitehall ‘spotted on date’ with STUNNING German lingerie model Melinda London, 20

Entertainment
Its been a few years since the Travels With My Father star split with long-term girlfriend Gemma Chan. Jack Whitehall has been on the market since 2017, despite being linked to a string of A-list beauties in the meantime. Now it seems the 30-year-old is back on the dating scene - and he may have found what he's looking for in a gorgeous German Insta-babe.The comic was apparently spotted having dinner with 20-year-old model Melinda London on Wednesday evening.  Related Articles According to The Sun, the two singletons were keeping each other company at a private member’s club. Named White City House, the social club is an exclusive dining spot and hotel for the VIP crowds in west London. Though the romance hasn’t been confirmed,
Want to go green and get a Tesla Model 3? Here’s what you need to know first

Want to go green and get a Tesla Model 3? Here’s what you need to know first

Finance
If you're thinking of switching to an electric vehicle with a focus on environmental benefits, chances are that you have considered a Tesla. Here are a few things you should know. The debut of the Model 3 — which starts at $ 35,000 — is Tesla's most affordable model. And it has many individuals wondering if they want to convert to gas-free driving. In April, Tesla began offering leases on its Model 3. For a Tesla model with standard range plus — 240 miles — the purchase price is roughly $ 39,500 if you pay cash, excluding taxes and fees, according to