If any animal understands the horrors of trench warfare, it has to be the mole. Faced with an enemy, there’s no time for pleasantries. No place to hide. Aggression is all that matters.
To help them fight in this brutal world, evolution has granted the female mole a generous dose of ‘roid rage’ by tacking some testicles onto her ovaries – resulting in a unique bit of anatomy called an ovotestis.
Now, researchers have a better understanding of how this fascinating biological change came about.
“At a certain point, sexual development usually progresses in one direction or another, male or female. We wanted to know how evolution modulates this sequence of developmental events, enabling the intersexual features that
When scientists first found signs of a lake under Mars’ south pole in 2018, questions abounded over how such a feature could form and whether the measurements were accurate. Now, a study published this week in Nature Astronomy not only confirms the size and location of the first lake, but also shows three more, smaller bodies of water nearby.
The study adds 100 measurements to the team’s original 29 figures for a clearer picture of the region. The four lakes are hidden a mile under the surface of Mars’ icy south pole, and may be full of salt and sediments to remain liquid even in extreme cold temperatures. Some scientists not involved in the study are cautious about the research team’s conclusions, but the study authors see the discovery as an optimistic signal in the search for life on Mars.
“Here we have not just an occasional body of water,
Be sure to pack some arm floaties and a really big drill for when you fly to Mars. There may be a whole world of water-filled ponds hiding beneath the dry and dusty planet’s southern ice cap.
A new study led by researchers at Roma Tre University in Italy strengthens the case for a 2018 discovery of a hidden lake under the Martian polar ice, and then extends the find to include three new ponds.
From the lab to your inbox. Get the latest science stories from CNET every week.
The researchers used radar data from the European Space Agency’s Mars Express orbiter to make its original detection of liquid water.
“Now, taking into account more data and analyzing it in a different way, three new ponds have been discovered,”
Researchers say they have discovered a group of lakes hidden under Mars’ icy surface
This follows the detection of another subsurface lake in the same region in 2018
The findings revived the debate on whether the Red Planet has alien life or can house microorganisms
A team of Italian scientists discovered a group of three salty ponds beneath Mars’ south pole. The findings revived the debate on whether the Red Planet has alien life or at least can house microorganisms.
The discovery of these ponds raised the possibility that microbial organisms could survive on Mars but the only hindrance was the high amount of salt concentration, which could be keeping the waters frozen, scientists said in a report published on Sept. 28 in Nature Astronomy.
The discovery of the salty ponds was significant because their locations were close to another lake discovered in 2018. The largest of them
Four underground reservoirs of water may be sitting below the south pole of Mars. The new findings, published today in Nature Astronomy, suggest Mars is home to even more deposits of liquid water than once thought.
The background: In 2018, a group of Italian researchers used radar observations made by the European Space Agency’s Mars Express orbiter to detect a lake of liquid water sitting 1.5 kilometers below the surface of Mars. The lake, which was about 20 kilometers long, was found near the south pole, at the base of an area of thick glacial ice called the South Polar Layered Deposits. Those radar observations were made by an instrument called Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS).
The new study: Two years later, after a new analysis of the complete MARSIS data set (composing over 134 radar collection campaigns), members of that same team have confirmed the
NASA’s Perseverance rover is flying to Mars as you read this sentence. It will land there in February 2021 and set aside rocks with promising signs of ancient life, for a future mission to pick up for analysis.
But what about current life on Mars? Are microbes embedded in the ice caps? Perhaps they are sheltering in water runoff in some crater? Or, as some scientists suggest, is life buried miles underground — a difficult spot for us to search, at best?
A new study is trying to figure out ways to hunt for life on worlds that have little or no running water at the surface. One easy answer, in theory, is to look to water reserves underground — and we are pretty sure Mars
There are four ways drones typically navigate. Either they use GPS or other beacons, or they accept guidance instructions from a computer, or they navigate off a stored map, or they are flown by an expert in control.
What do you when absolutely none of the four are possible?
You put AI on the drone and it flies itself with no outside source of data, no built-in mapping, and no operator in control.
At least, that’s what Exyn Technologies says it’s doing with ExynAI: allowing drones to function with no GPS, no radio communications, and no stored map. The goal is to enable drones to work where humans can’t, the company says, including underground in active mines.
The claim: Exyn has the first industrial drone that flies itself anywhere.
“It’s having robots do some of the work that folks are doing underground right