Satellites come in all shapes and sizes, but there aren’t any that look quite like SPHEREx, an infrared observatory NASA launched Tuesday night in search of answers to simmering questions about how ...

Less than a year into its mission, NASA’s SPHEREx has already completed its first full survey of the sky, producing a near-infrared map that captures the entire cosmos in a staggering 102 colors.

A bright star in the Andromeda galaxy appears to have simply vanished. After a dramatic mid-infrared flare in 2014, the object has faded in visible light by a factor of more than 10,000 by 2023, ...

Space observatories tend to work quietly, collecting data long before images reach the public. In March 2025, NASA launched ...

NASA’s Nancy Grace Roman Space Telescope will conduct a wide-area survey to study dark matter, dark energy, and the expansion of the universe across 11 billion light-years.

Learn how the James Webb Space Telescope used infrared spectroscopy to uncover dense organic molecules in one of the ...