Over the quarter century I’ve been writing this column, I've been flabbergasted by the advances in telescopes for backyard ...

In this photo, optical engineer Bente Eegholm inspects the surface of the primary mirror for NASA's Nancy Grace Roman Space Telescope. This 7.9-foot (2.4-meter) mirror is a major component of the ...

NASA's Nancy Grace Roman Space Telescope is one giant step closer to unlocking the mysteries of the universe. The mission has ...

Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

The Roman Coronagraph Instrument, designed to block starlight, will help scientists detect faint light from exoplanets.

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

There are only two types of mirrors with optical powers: concave mirrors and convex mirrors, representing positive (P) and negative (N) optical powers, respectively. The TMA optical system has a total ...

A prime example is the European Space Agency’s wide-angle Euclid telescope that launched in 2023 to investigate the riddles of dark energy and dark matter. Euclid this week delivered the first ...

The material is popular for telescope mirrors and other technology that needs to be precise since it's able to hold its shape even when exposed to a wide range of temperatures. The LISA mission is ...

The Extremely Large Telescope (ELT) will house a mirror the size of four tennis courts, under a huge dome in the Atacama Desert. Reflecting telescopes like ELT work by using a primary mirror to ...

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