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科学与环境

Scientists may have misread a 2-billion-year-old clue about Earth

Scientists have found that a famous 2-billion-year-old chemical signature, once thought to record a massive global change in Earth’s carbon cycle, may instead have been produced by local magma, hydrocarbons, and methane-eating microbes. The discovery raises new questions about wh

All Top News -- ScienceDaily ·

London transfer: is it time to kill off the Heathrow Express?
商业与经济

London transfer: is it time to kill off the Heathrow Express?

With fares high and passenger numbers low, plans for a third runway could bring the train’s future into question If Heathrow finally builds its third runway, Londoners can expect hundreds more planes flying overhead each day. But greater congestion on the ground will be a problem

Business | The Guardian ·

Can Trump ever be wrong? His pick to lead FDA refused to say.
科技与人工智能

Can Trump ever be wrong? His pick to lead FDA refused to say.

Heidi Overton , President Trump's nominee to lead the Food and Drug Administration, went before the Senate health committee Thursday, facing questions about her stances on vaccines, flavored vapes, birth control, and abortion, among other issues. She spent nearly two hours stonew

Ars Technica - All content ·