MARS: PERSEVERANCE ROVER DISCOVERS MORE ORGANIC MATERIAL ON MARS THAN EVER BEFORE
The rover collected samples from an area where scientists think life could have thrived on ancient Mars
As part of its continuing exploration of an ancient Martian riverbed, NASA's Perseverance rover has collected some of the most promising samples yet in its ongoing search for signs of life on the Red Planet. Among them are several samples of sandstone and mudstone, collected from a one-meter-wide rocky outcrop named Wildcat Ridge that is packed with organic compounds - chemicals essential for life on Earth.
Perseverance has been trundling around an area known as the Jezero Crater since September 2021 and has so far collected 12 samples of rock.
All of the samples it collects over its two-year mission are scheduled to be brought back to Earth for analysis in 2033 as part of the Mars Sample Return mission.
The Jezero Crater lies just north of the Martian equator. It is 45km wide and home to an ancient fan-shaped delta that formed about 3.5 billion years ago when rivers spilled over the crater walls and created a lake.
"We picked the Jezero Crater for Perseverance to explore because we thought it had the best chance of providing scientifically excellent samples - and now we know we sent the rover to the right location," said Dr Thomas Zurbuchen, NASA's associate administrator for science in Washington.
A preliminary analysis of the Wildcat Ridge samples was carried out by an instrument onboard Perseverance called Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals, or SHERLOC.
This story is from the October 2022 edition of BBC Science Focus.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Sign In
This story is from the October 2022 edition of BBC Science Focus.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
COULD MARINE CLOUD BRIGHTENING HELP US FIGHT CLIMATE CHANGE?
The theory behind marine cloud brightening is that brighter or whiter clouds reflect more sunlight back into space.
IS IT SAFE TO RUN EVERY DAY, OR SHOULD I DITCH MY RUN STREAK TO SAVE MY KNEES?
A running streak, where you run every day without taking rest days, can be highly motivating and beneficial for overall fitness. Running is great cardiovascular exercise and isn't to be discouraged (and finding a routine with some consistency is great). Getting a bit of exercise as often as possible is also hugely beneficial for your mental health.
WHAT MAKES THE MEDITERRANEAN DIET SO GOOD FOR US?
The Mediterranean diet may help you live longer, especially if you also adopt the lifestyle of people living near the Med during the 1950s.
WHAT IS MEXICO'S BLUE HOLE?
The world's deepest blue hole (marine sinkhole) lies off the coast of Mexico's Yucatán Peninsula. It's at least 420m (1,378ft) deep, but explorers still haven't found its bottom.
HOW CAN I TELL IF I'VE GOT HIGH CORTISOL LEVELS?
Cortisol is a hormone produced by glands in our bodies called the adrenal glands, which sit above the kidneys. It plays a critical role in various bodily functions, including regulating metabolism, reducing inflammation and helping the body respond to stress. While essential for our health, chronic elevation of cortisol levels can lead to several issues.
THE LUNGFISH
In 1836, European scientists discovered a peculiar animal from the River Amazon that they struggled to identify. Its eel-like body was a few feet long and its air-filled lungs persuaded anatomists it must be a reptile.
ARE WE THE ONLY SPECIES TO HAVE BEEN THROUGH A STONE AGE?
The Stone Age might conjure up images of early humans, sitting around a campfire or hunting prehistoric beasts, but evidence shows that we're not the only species that has learned how to work with stone tools. Wild chimpanzees (Pan troglodytes) use stone tools to crack open nuts.
Should we scrap daylight saving time?
Most of us look forward to the extra hour we get in bed every October, but researchers argue that changing the clocks twice a year harms our health
THE INTERNET OF ANIMALS
SCIENTISTS ARE USING ELECTRONIC TAGS AND SATELLITES TO TRACK WILD ANIMALS AND CREATE A DATA NETWORK THAT COULD HELP US ADDRESS THE BIODIVERSITY CRISIS
MUSIC FOR A DISTRACTED GENERATION
The number of things competing for our attention is often overwhelming. Can dreamy soundscapes created with neuroscience help our bewildered brains to concentrate?
