The Center for Astrophysics | Harvard & Smithsonian High Energy Astrophysics division focuses on X-ray astronomy and instrumentation involved in observations of high-energy sources. This research aims ...

Everything we can observe in the Universe takes place in four dimensions—the three dimensions of space and the dimension of time. This basic system, known as spacetime, can distort in the presence of ...

CfA Colloquia offer an opportunity for scientists, engineers, and staff to hear about topics at the forefront of astrophysical research from leaders in their field. Themes range from upcoming NASA ...

The Event Horizon Telescope (EHT) Collaboration has conducted test observations achieving the highest resolution ever obtained from the surface of the Earth, by detecting light from the centers of ...

The Smithsonian Astrophysical Observatory (SAO) is at the forefront, internationally, of the scientific exploration of the universe. SAO combines its resources with those of the Harvard College ...

Trust Fund positions are unique to the Smithsonian. They are paid for from a variety of sources, including the Smithsonian endowment, revenue from our business activities, donations, grants and ...

AREA OF CONSIDERATION: This position is open to all qualified candidates. What are Trust Fund Positions? Trust Fund positions are unique to the Smithsonian. They are paid for from a variety of sources ...

The Milky Way is our galactic home, part of the story of how we came to be. Astronomers have learned that it’s a large spiral galaxy, similar to many others, but also different in ways that reflect ...

Large galaxies like the Milky Way formed out of mergers with smaller galaxies and by stealing some of their stars. Astronomers discovered that as many as 25% of galaxies are currently merging with ...

For the first 380,000 years or so after the Big Bang, the entire universe was a hot soup of particles and photons, too dense for light to travel very far. However, as the cosmos expanded, it cooled ...