A Hall thruster is a high-efficiency propulsion device using plasma that is used for various difficult space missions, such ...

The construction is part of the Metra Electric Community Initiative to modernize 13 stations on the line stretching from the Loop to the far south suburbs.

Elon Musk is rapidly consolidating control over large swaths of the federal government with President Donald Trump’s blessing ...

Dogs lined up in San Francisco to receive free vaccines Monday to combat an outbreak of a highly contagious illness that can ...