Science News Roundup: NASA seeks cheaper ideas for Mars sample return mission amid budget crunch; Dinosaurs displayed a fast growth rate from the very beginning and more

Researchers now have unlocked the genome of the Arabica species and traced its origins to a natural mating between two other coffee species an estimated 610,000 to one million years ago in the forests of Ethiopia.

Following is a summary of current science news briefs.

Genome study reveals prehistoric Ethiopian origins of coffee

You might call it a cup of Joe, java, mud, brew, mocha, or your morning jolt. Coffee undoubtedly is a big part of global culture, and the kind made from the Arabica bean is the most appreciated by coffee drinkers. Researchers now have unlocked the genome of the Arabica species and traced its origins to a natural mating between two other coffee species an estimated 610,000 to one million years ago in the forests of Ethiopia. That makes this species older than our own species Homo sapiens, which arose in Africa about 300,000 years ago.

Dinosaurs displayed a fast growth rate from the very beginning

One of the traits that helped make the dinosaurs such an evolutionary success story - thriving for 165 million years - was their fast growth rate, from massive meat-eaters like Tyrannosaurus to immense plant-eaters like Argentinosaurus. But when did this characteristic first appear? A new study indicates it was present in the earliest dinosaurs, as revealed by microscopic features in bone fossils from Argentina that showed that they exhibited growth rates on par with those of today's mammals and birds.

Australia's Juukan Gorge yields up rare Tasmanian Devil tooth

Archaeologists surveying the Juukan Gorge rock shelter in Western Australia that was destroyed by Rio Tinto in 2020 have unearthed major finds including the tooth of a Tasmanian Devil that has not been recorded on the mainland in 3,000 years.

The Tasmanian Devil is one of the world's largest meat-eating marsupials that is an apex predator on the country's southern island. It died out on the mainland around 3,500 years ago.

Astronomers detect Milky Way's second-largest known black hole

Astronomers have discovered a black hole with a mass about 33 times greater than that of our sun, the biggest one known in the Milky Way aside from the supermassive black hole lurking at the center of our galaxy. The newly identified black hole is located about 2,000 light-years from Earth - relatively close in cosmic terms - in the constellation Aquila, and has a companion star orbiting it, researchers said on Tuesday. A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).

NASA seeks cheaper ideas for Mars sample return mission amid budget crunch

NASA is seeking a cheaper, simpler approach to one of its top science priorities amid a budget crunch - retrieving precious soil samples collected on Mars and flying them back to Earth, U.S. space agency officials said on Monday. A formal request for proposals will go out Tuesday to various NASA centers and laboratories, as well as to space industry companies, asking how to revamp a program mired in technical complexities, spending constraints and ballooning costs, according to NASA executives.

(With inputs from agencies.)