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67,639 articles from Yahoo!

The robots occupying our sidewalks

The Mountain View City Council voted on May 5, 2020 to allow Starship Technologies’ robots on city streets. Founded in 2014, Starship operates no-contact delivery robots in several cities around the world. How would the autonomous robots react to disabled...


MONDAY 10. AUGUST 2020


Dwarf planet Ceres is an ocean world: study

The dwarf planet Ceres -- long believed to be a barren space rock -- is an ocean world with reservoirs of sea water beneath its surface, the results of a major exploration mission showed Monday. Ceres is the largest object in the asteroid belt between Mars and Jupiter and has its own gravity, enabling the NASA Dawn spacecraft to capture high-resolution images of its...


SATURDAY 8. AUGUST 2020


The Coronavirus Is New, but Your Immune System Might Still Recognize It

Eight months ago, the new coronavirus was unknown. But to some of our immune cells, the virus was already something of a familiar foe.A flurry of recent studies has revealed that a large proportion of the population -- 20% to 50% of people in some places -- might harbor immunity assassins called T cells that recognize the new coronavirus despite having never encountered it before.These T cells,...

Plants cropping up in lost Michigan lakes where dams failed

Nature is returning to craters left from lakes drained by two dams that failed in May during torrential rain in mid-Michigan. “Shortly after the water receded, you could look out over the exposed bottom lands of the lake and it was like looking at the Sahara Desert,” said Dave Rothman, a board member with the Four Lakes Task Force, which is looking to obtain the four dams as well as the two...


FRIDAY 7. AUGUST 2020


SpaceX launches 57 stealth satellites for Starlink network, plus a pair for BlackSky

After weeks of delay, a SpaceX Falcon 9 rocket sent up 57 more satellites for its Starlink broadband internet constellation, with two BlackSky planet-watching satellites hitching a ride. The launch was originally scheduled for June, but had to be put off several times due to technical concerns, weather delays and range schedule conflicts. This time around, the countdown proceeded smoothly to...


THURSDAY 6. AUGUST 2020