Science
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$28 million bid buys ride to space on Bezos' Blue Origin flight
The Amazon founder and his brother also plan to take the July 20 trip.
National Geographic recognizes Southern Ocean: Could fifth ocean be added to world maps?
The Southern Sea, which surrounds Antarctica, is officially being recognized by National Geographic as the Earth's fifth ocean. NBC News’ Denise Chow shares how this could affect world maps going forward.
Photos show Chinese rover on dusty, rocky Martian surface
China is the second country to land and operate a spacecraft on Mars, after the United States.
Third member of FDA advisory panel resigns over Alzheimer's drug approval
The resignations are in protest over the agency's decision to approve Biogen Inc's Alzheimer's treatment despite the committee's recommendation against doing so.
Lake Mead's water level drops to lowest point in history
Declining water levels in the nation's largest reservoir are the result of the ongoing drought and growing water demands across the southwestern U.S.
National Geographic adds 5th ocean to world map
National Geographic announced it was recognizing the body of water encircling the Antarctic as the Earth's fifth ocean: the Southern Ocean.
How to see today's 'ring of fire' solar eclipse
The so-called annular eclipse was due to take place early Thursday when the moon passes between the sun and Earth.
Cicadas are causing unusual disruptions, from a flight delay to a car crash
The billions of Brood X cicadas swarming across the East and parts of the Midwest have caused several unusual disruptions over the past week.
Spacecraft buzzes Jupiter’s mega moon, 1st close-up in years
Ganymede is one of 79 known moons around Jupiter, a gas giant.
Carbon dioxide levels hit 50 percent higher than preindustrial time
The National Oceanic and Atmospheric Administration said the average carbon dioxide level for May was 419.1 parts per million.
Behemoth 98-foot-long dinosaur confirmed to be largest ever found in Australia
The specimen, nicknamed "the southern titan," is the largest dinosaur ever found in Australia and is among the 15 largest dinosaur specimens worldwide.
Fifty years later: Earth Day has descended into GOP-driven chaos, experts warn
Changing global and political landscapes have made the kind of broad and bipartisan agreements reached in the 1970s seem impossible.
