Giant mirrors in space have been a staple of science fiction for decades. But so far, there's been very little work looking ...

A close stellar encounter from deep time may still be shaping the path of icy visitors entering the inner Solar System today, ...

At the right point of the orbit and stellar cycle, the star’s chromosphere brightens.

A giant slingshot sounds more like a county fair stunt than a serious space plan. Yet one California company is trying to ...

A newly discovered object orbiting far beyond Neptune has its closest approach to the Sun pointed in the opposite direction from every other known body like it, weakening one of the central ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our own solar system? While distant galaxies reveal clear signs of something ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with atmosphere, they have a wide range of characteristics distinguishing them. But if ...

The sun is at the Reach Museum, where it takes the form of arches overlooking Bateman Island and the Columbia River at the Richland Wye. Eight planets and an asteroid orbit it in a regional solar ...

The system enables measurements under controlled irradiance, spectrum, and temperature conditions. It can combine 0.4% spatial irradiance uniformity, 500 ms illumination pulses, and dynamic I-V ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers who discovered it using telescopes from NASA and the European Space Agency, ...