The NASA/ESA Hubble Space Telescope is celebrating its 32nd birthday with a magnificent view of the Hickson Compact Group 40, an extraordinary close-knit grouping of…
What Is a Dwarf Galaxy? Dwarf galaxies are small galaxies made up of a few billion stars. Compared to their larger cousins, which can contain…
Every year on April 22, people all over the world come together to raise awareness about the decreasing quality of the environment, the unmistakable effects…
NASA is celebrating the Hubble Space Telescope’s 32nd birthday with a spectacular look at The Hickson Compact Group 40, an unusual close-knit collection of five…
Two merging galaxies in the VV689 system — nicknamed the Angel Wing — feature in this image from the NASA/ESA Hubble Space Telescope. Unlike chance…
What Is a Circumstellar Disc? Circumstellar discs are discs of dust, gas, asteroids and other objects that rotate around a star. Circumstellar discs around newly…
The Copernicus Sentinel-3 mission captured this impressive shot of the almost cloud-free Scandinavian Peninsula on 20 March. The Scandinavian Peninsula, which comprises Sweden and Norway,…
What Is a Black Hole? Black holes are objects so dense, and with so much mass, that even light cannot escape their gravitational pull. Black…
Bizarre, Evolutionary Missing Link Uncovered in Hubble Deep Survey of Galaxies The universe is so saturated with galaxies that even the weirdest things can go…
This artificial bone sample is an early step towards making 3D bioprinting a practical tool for emergency medicine in space. An ESA R&D effort aims…
After decades of drought, water levels in Lake Powell, the second-largest human-made reservoir in the United States, have shrunk to their lowest level since it…
The spiral galaxy M91 fills the frame of this Wide Field Camera 3 observation from the NASA/ESA Hubble Space Telescope. M91 lies approximately 55 million…
Data from the Tropomi instrument onboard the Copernicus Sentinel-5P satellite has been used to detect methane plumes over some of Europe’s largest methane-emitting coal mines….
Solar energy generation keeps on becoming cheaper and more efficient, but some basic limitations will always apply: solar panels can only generate power during the…
What Is the Big Bang? The Big Bang is the popular name for the moment in time when the Universe started. The term ‘Big Bang’…
The NASA/ESA Hubble Space Telescope has directly photographed evidence of a Jupiter-like protoplanet forming through what researchers describe as an “intense and violent process.” This…
What Is an Asteroid? Asteroids are rocky celestial bodies that orbit the Sun, but do not meet the requirements to be classified as a planet….
The lazily winding spiral arms of the galaxy NGC 5921 snake across this image from the NASA/ESA Hubble Space Telescope. This galaxy lies approximately 80…
