She had a scientist's gift for noticing, for observing nature closely enough to charge everyday instants with meaning.
The partial government shutdown has stalled an emergency update to the World Magnetic Model, an important tool for navigation.
Months after a dazzling supernova was spotted in the sky above Hawaii, scientists are puzzling over what caused it.
A hardware problem has hobbled ultraviolet and optical observations from one of telescope's celebrated cameras.
A new instrument detected more than a dozen fast radio bursts — powerful flashes of radio energy that appear all over the sky.
Scientists are smarting from the loss of data, research opportunities and paychecks.
How a giant of the solar system helped humanity find our place in the cosmos.
The mission will explore a massive crater at the lunar south pole.
Ultima Thule, made of two icy space rocks smashed together, resembles a reddish snowman.
Lying is in the news after testimony from President Trump's longtime lawyer.