George Dvorsky's posts - English uPOST

This Freaky Robotic Fish Is Powered by ‘Blood’ This Freaky Robotic Fish Is Powered by ‘Blood’

In an effort to create more autonomous, life-like robots, scientists have developed a soft robotic lionfish with a multi-functional circulatory system. A blood-like compound powers the bot and provides propulsion.

One of the World’s Most Ancient Cities Experienced Surprisingly Modern Problems One of the World’s Most Ancient Cities Experienced Surprisingly Modern Problems

New archaeological evidence suggests the inhabitants of Çatalhöyük, an ancient city founded over 9,000 years ago in what is now Turkey, were subject to many urban problems we’re familiar with today, including overcrowding, interpersonal violence, and sanitation issues.

During the Ice Age, Long-Legged Hyenas Prowled the Arctic During the Ice Age, Long-Legged Hyenas Prowled the Arctic

A pair of fossilized teeth confirms the presence of hyenas north of the Arctic circle during the last Ice Age. The discovery fills an important fossil gap that finally explains how hyenas ended up in North America.

Spectacular New Crater Discovered on Mars Spectacular New Crater Discovered on Mars

A fresh Martian crater has been detected in a stunning new image taken by NASA’s Mars Reconnaissance Orbiter.

NOAA Investigates Surge in Dead Dolphins Along the Gulf Coast NOAA Investigates Surge in Dead Dolphins Along the Gulf Coast

Since the beginning of February, over 260 bottlenose dolphin strandings have been documented along the northern Gulf Coast, prompting the declaration of an “unusual mortality event.” The reason for the strandings isn’t entirely clear, but indications point to excessive freshwater from rain—and even the Deepwater…

The Sun Can Spawn Dangerous ‘Superflares,’ New Research Suggests The Sun Can Spawn Dangerous ‘Superflares,’ New Research Suggests

High-energy superflares are typically associated with young, quickly rotating stars, but new evidence suggests mature, plodding stars like our own can still churn out the odd superflare.

Stunning but Deadly, China’s Bioluminescent Algal Blooms Are Getting Bigger Stunning but Deadly, China’s Bioluminescent Algal Blooms Are Getting Bigger

Satellite imagery taken over the past two decades shows that the toxic bioluminescent microorganisms responsible for China’s sparkling blue seas are becoming increasingly abundant.

The Hidden Ocean Beneath Europa’s Frozen Crust May Contain Basic Table Salt The Hidden Ocean Beneath Europa’s Frozen Crust May Contain Basic Table Salt

Observations from the Hubble Space Telescope point to the presence of sodium chloride on the surface of Jupiter’s icy moon Europa. This is potential evidence that sodium chloride, otherwise known as table salt, exists within Europa’s subsurface ocean—yet another indication of this moon’s potential to support alien…

A ‘Catastrophic’ Fire Destroyed This Incredible Bronze Age Settlement a Year After It Was Built A ‘Catastrophic’ Fire Destroyed This Incredible Bronze Age Settlement a Year After It Was Built

A remarkably well-preserved Bronze Age settlement dubbed the ‘British Pompeii’ was destroyed by fire around a year after it was constructed, according to new research. It’s one of many new findings that’s shedding light on the 3,000-year-old community and the people who called it home—albeit it for a short time.

Astronomers Think They’ve Finally Found the Lost Lunar Module From Apollo 10 Astronomers Think They’ve Finally Found the Lost Lunar Module From Apollo 10

A discarded Apollo 10 lunar module known as “Snoopy” has been drifting in space for the past 50 years, its location a complete mystery. Now, after a meticulous eight-year search, a team of astronomers suspect they’ve finally found it.

Huge, Shaggy Head of 30,000-Year-Old Wolf Unearthed in Siberia Huge, Shaggy Head of 30,000-Year-Old Wolf Unearthed in Siberia

A well-preserved head belonging to an ancient species of Pleistocene wolf has been pulled from the permafrost of northeastern Siberia. The enormous, well-preserved head could yield important genetic information about the evolutionary history of wolves and the origin of domesticated dogs.

Satellite Constellations Like SpaceX's Starlink Could Cause Major Problems, Astronomy Group Warns Satellite Constellations Like SpaceX's Starlink Could Cause Major Problems, Astronomy Group Warns

Members of the American Astronomical Society are speaking out about the potential for large satellite constellations, such as SpaceX’s Starlink network, to interfere with scientific observations of space. In a statement issued today, the AAS said we need to re-think this technology before it’s too late.

Evidence of a Gigantic Impact Crater Found Off Scottish Coast Evidence of a Gigantic Impact Crater Found Off Scottish Coast

Some 1.2 billion years ago, an asteroid measuring over 1 kilometer (0.6 miles) wide smashed into northwest Scotland. Trouble is, scientists aren’t sure exactly where the meteorite struck, as traces of the crater are long gone. With new research, however, scientists are starting to hone in on the impact zone.

NASA Is Opening the ISS to Tourists—but Don't Worry, You Can't Afford It NASA Is Opening the ISS to Tourists—but Don't Worry, You Can't Afford It

Starting as early as next year, NASA will make the International Space Station available to space tourists and other business ventures. Sounds exciting, but the associated costs are far beyond what most of us can afford.

New Campaign Is Asking Every Country on Earth to Name Distant Worlds New Campaign Is Asking Every Country on Earth to Name Distant Worlds

A new campaign headed by the International Astronomical Union (IAU) called IAU100 NameExoWorlds will allow each country in the world to name a star and its exoplanet, the IAU announced yesterday.

Cannonballs Likely Used by Vlad the Impaler Found in Bulgarian Fortress Cannonballs Likely Used by Vlad the Impaler Found in Bulgarian Fortress

Archaeologists in Bulgaria are claiming to have uncovered stone cannonballs used during Vlad III Dracula’s assault on the historic Zishtova Fortress. The unusually cruel military commander—famously known as Vlad the Impaler—wrested the stronghold from the Ottoman Turks in 1461.

Trump’s Misguided Ban on Federal Fetal-Tissue Research Can Only Hurt Science Trump’s Misguided Ban on Federal Fetal-Tissue Research Can Only Hurt Science

The Trump administration is halting fetal tissue research by government scientists and placing new restrictions on how the National Institutes of Health issues grants to academic researchers. The move is meant to appease the president’s anti-choice political base, but the measures are a serious blow to medical science.

Goo From Giant Salamanders Is Impressively Good at Sealing Wounds Goo From Giant Salamanders Is Impressively Good at Sealing Wounds

When Chinese giant salamanders are injured, they discharge white mucus from glands on their skin. As new research shows, this sticky salamander goo makes for an excellent medical glue, sealing wounds and encouraging them to heal.

A Cool, Gassy Ring Has Been Detected Around Our Galaxy's Gigantic Black Hole A Cool, Gassy Ring Has Been Detected Around Our Galaxy's Gigantic Black Hole

Using the ALMA observatory, scientists have detected a previously undocumented band of cool gas wrapped around the black hole at the core of our galaxy.

Why Frogs Love to Lay Their Eggs in Elephant Footprints Why Frogs Love to Lay Their Eggs in Elephant Footprints

Frogs in Myanmar are surprisingly dependent upon elephants, or rather, the tracks they leave behind. New research shows that water-filled elephant footprints provide an under-appreciated sanctuary for frogs to lay their eggs.

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