Sensitive equipment and historical artifacts — including the Mills spectrograph used in the observatory’s early days to ...

The National Weather Service expects a storm to hit Mount Hamilton on Friday night and bring 2 to 2 1/2 inches of rain to the ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

A supermassive black hole in the spiral galaxy NGC 3783 just delivered an X-ray surprise that astronomers have never watched ...

In 1974, the project’s Science Working Group recommended that the telescope be required to resolve details at least one-tenth ...

Gamma-ray bursts (GRBs) are among the most powerful explosions in the universe, second only to the Big Bang. The majority of ...

Astronomers observing the starFomalhaut, located just 25 light-years from Earth, believed they had detected a planet, later ...

Researchers at the University of North Carolina at Chapel Hill have contributed to new insights into the most long-lived cosmic explosion ever recorded. The event was a gamma-ray burst that remained ...

Using observations from both ground-based telescopes and space instruments, they were able to measure the planet's size and ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...