Hiding in Plain Sight Behind Piercingly Blue Stars
The subdued red tones of the globular cluster Liller 1 are partially obscured in this view by a dense scattering of piercingly blue stars. In…
The subdued red tones of the globular cluster Liller 1 are partially obscured in this view by a dense scattering of piercingly blue stars. In…
Three Decades of Space Telescope Observations Converge on a Precise Value for the Hubble Constant Science history will record that the search for the expansion…
What Is the James Webb Space Telescope? The James Webb Space Telescope is the next great space science observatory, designed to answer outstanding questions about…
Spiral galaxy IC 342, also known as Caldwell 5, is located approximately 11 million light-years from Earth. The Hubble Space Telescope captured this sparkling, face-on…
This glittering gathering of stars is the globular cluster NGC 6558, and it was captured by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys….
NASA’s Hubble Space Telescope has allowed astronomers to view galaxies of all shapes and sizes from nearly every angle. When a galaxy is seen edge-on,…
An international team of astronomers has discovered a unique object in the distant, early Universe that is a crucial link between star-forming galaxies and the…
This NASA Hubble Space Telescope image shows a section of the spiral galaxy nicknamed the Needle’s Eye – an appropriately diminutive name for a dwarf…
What Is an Elliptical Galaxy? Elliptical galaxies have an even, ellipsoidal shape. They typically contain a much greater proportion of older stars than spiral galaxies…
The tattered remnant of a supernova — a titanic explosion marking the end of the life of a dying star — is shown in this…
What Is Jupiter? Jupiter is the fifth planet from the Sun. It is a gas giant, and the largest and most massive planet in our…
The discovery helps explain the puzzle of hydrogen loss pre-supernova, and supports the theory that most massive stars are paired. It’s not unheard of to…
Hubble’s launch and deployment in April 1990 marked the most significant advance in astronomy since Galileo’s telescope. Thanks to five servicing missions and more than…
What Is an Exoplanet? An exoplanet is a planet that is located outside our Solar System. While there is currently no formal agreement on what…
What Is a Dwarf Planet? A dwarf planet is a celestial body that is in orbit around the Sun and has enough mass to be…
The magnificent spiral galaxy M99 fills the frame in this image from the NASA/ESA Hubble Space Telescope. M99 — which is located about 42 million…
What Is a Habitable Zone? The Habitable Zone is the region around a star where the conditions could potentially be suitable to sustain life on…
What Is Infrared Astronomy? Infrared astronomy is a branch of astronomy in which astronomers observe and analyze light from the Universe with wavelengths in the…