Category archives: Weekly Selection

MI weekly selection #469

MI weekly selection #469

Weekly Selection

By César Tomé

Martian meteorite suggests no life on Red Planet After examining the remnants of a meteorite knocked loose from Mars 1.3 billion years ago, scientists found the 725-gram rock had only trace amounts of exposure to hydrogen, almost certainly confirming there has not been life on the Red Planet. United Press International It’s our own fault […]

MI weekly selection #468

MI weekly selection #468

Weekly Selection

By César Tomé

Aerosol pollution reduces Pacific’s storm activity Increasing aerosol pollution from China and India has had a cooling effect, leading to reduced storm activity in the Pacific Ocean in recent decades, according to a study that relied on computer simulations. As a result, as the governments of those countries aim to reduce aerosol pollution, they also […]

MI weekly selection #467

MI weekly selection #467

Weekly Selection

By César Tomé

Data from Mars rover suggest presence of rare rock Scientists who studied images collected by a Mars rover say the planet may contain ignimbrite, a rare rock created by powerful volcanic eruptions. The presence of ignimbrite, also found on Earth, would suggest eruptions on Mars were more violent than thought. Space Robotic rat can handle […]

MI weekly selection #466

MI weekly selection #466

Weekly Selection

By César Tomé

Lava creates dunes on surface of volcanic Jupiter moon Using observations from NASA’s Galileo spacecraft and complex mathematical simulations, researchers discovered new information about the mysterious dunes on the surface of Io, Jupiter’s third-largest moon. The dunes are formed not by wind as on Earth but by “effusive” lava streams from Io’s hundreds of active […]

MI weekly selection #465

MI weekly selection #465

Weekly Selection

By César Tomé

Water may be hidden beneath Europa’s icy surface Beneath the 20-kilometer thick ice crust covering Jupiter’s Europa moon, researchers think an ocean awaits. Scientists studying the frozen surface of Greenland have determined Europa is similar enough that its hidden water store could host microbial life. Space Climate crisis leaves parts of world with 50% fewer […]

MI weekly selection #464

MI weekly selection #464

Weekly Selection

By César Tomé

Massive protoplanet formed in unexpected way A protoplanet with a mass many times larger than Jupiter’s likely formed as the result of a massive implosion, pulling together gas and dust. Based on the planet’s size and distance from the nearest star, astronomers found that planet AB Aur b didn’t form as they originally thought, but […]

MI weekly selection #463

MI weekly selection #463

Weekly Selection

By César Tomé

Scientists find galaxy far, far away Astronomers discovered HD1, an extremely energetic galaxy candidate that is 13.1 billion light-years from Earth, making it 100 million light-years farther away than what is currently the most distant galaxy. According to research, the energy emitted from HD1 could be because it is a gigantic black hole or contains […]

MI weekly selection #462

MI weekly selection #462

Weekly Selection

By César Tomé

Heartbeats as passwords By recording and isolating the unique “musical” properties of a heartbeat — both rhythm and pitch — researchers have created a biometric identification system which can distinguish between people with a 99.6% accuracy rate. “We might use this solution in a building’s access control system where pre-registered users provide a template (a […]

MI weekly selection #461

MI weekly selection #461

Weekly Selection

By César Tomé

Why don’t boa constrictors suffocate while eating? Constrictor snakes use their ribs and muscles to draw in air similar to a bellows, so they don’t suffocate while squeezing and swallowing large prey. Researchers put blood pressure cuffs on different sections of constrictors’ bodies and fitted the snakes’ heads with small helmets that measure air flow […]

MI weekly selection #460

MI weekly selection #460

Weekly Selection

By César Tomé

Mice brains wired with “competitive” neurons Researchers studying social behaviors of mice have identified that competition among the rodents was tied not only to social status but to the activation of neurons in the brain associated with feelings of ambition, decision making and rank. Results of the study, published in Nature, could be used to […]