Astronomy and commercial space are often portrayed as being on a collision course, yet their futures are deeply intertwined. As satellite constellations expand, astronomers raise concerns about trails ...

I've read that the planned crewed Mars missions will take six months or two years to arrive. Which is it? Could a longer trip ...

Astronomers have identified a frozen, Earth-sized world circling a nearby sunlike star, a find that sharpens the search for planets that resemble our own while underscoring how rare truly temperate ...

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A growing number of researchers in the field are using their expertise to fight the climate crisis. By Katrina Miller and Delger Erdenesanaa On the morning of Jan. 18, 2003, Penny Sackett, then ...

Historical observations of the Moon's motion, dating back to ancient civilizations, played a crucial role in the development of timekeeping and calendar systems. The Moon's orbital cycle can be ...