"Astronomers have been studying the heavens for thousands of years, but until recently much of the cosmos has been invisible to the human eye. Launched in 2003, the Spitzer Space Telescope has brought ...

The 1998 discovery that the universe is expanding at an accelerated rate raised new and profound questions about the nature and fate of the universe. Based on measurements of the speed of distant ...

Dr. Giovanni Fazio, from the Smithsonian Astrophysical Observatory discusses the Spitzer Space Telescope. Launched on 25 August 2003, the telescope is producing an exciting new view of the Universe ...

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big Bang—a cosmic Jekyll and Hyde that looks like any other galaxy when viewed in ...

NASA has just turned the entire sky into a kind of infrared rainbow, capturing it in 102 distinct colors that reveal structures and histories our eyes can never see. By scanning the cosmos in this ...