US government examining over 500 'UFO' reports

The US government is examining 510 UFO reports, over triple the number in its 2021 file, and while many were caused by drones or balloons, hundreds remain unexplained, according to a report released Thursday.

US to reimpose limits on power plants' mercury emissions

The US government announced Monday it wants to revive a regulation limiting air emissions of mercury and other toxic substances from fossil fuel-fired power plants that had been undermined by the previous administration.

US judge rules against Blue Origin in lunar lander suit

A US federal judge on Thursday ruled against Blue Origin brought by Jeff Bezos' company in a bid to overturn a NASA contract awarded to rival SpaceX, founded by Elon Musk, to build the next craft for Moon landings.

Blue Origin sues NASA over SpaceX Moon contract

Blue Origin, the space company owned by Jeff Bezos, is suing the US government over its decision to award a massive Moon exploration contract to its competitor SpaceX, it said in a statement Monday.

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