NASA chief: Visiting an asteroid is all agency can afford

A NASA plan to send astronauts to an asteroid was met with skepticism Wednesday when NASA Chief Charlie Bolden presented the idea to top space officials in Congress - though their doubts may not be enough to sink the program.

Proposed U.S. budget cuts target science

A "Sputnik moment" or a "kaputnik" one for U.S. science? With a federal budget battle showdown under way, science looks like collateral damage, say former federal officials, with proposed cuts to research that they consider ...

NASA chief acknowledges more trouble with SLS rocket

The US space agency NASA on Wednesday cast a shadow on the future of its new heavy-lift rocket, the SLS—acknowledging development delays on a project that is already years behind.

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