Astronomy & Astrophysics 101: Circumstellar Disc
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…
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 (WFC3) observation from the 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…
Barranquilla, the capital of the Atlántico department in northwest Colombia, is featured in this image taken by the Copernicus Sentinel-2 mission. Barranquilla, visible in grey…
The NASA/ESA Hubble Space Telescope has established an extraordinary new benchmark: detecting the light of a star that existed within the first billion years after…
A newly released Android app will turn your smartphone into an instrument for crowdsourced science. Leave it by your window each night with your satnav…
What Is a Globular Cluster? Globular clusters are stable, tightly bound clusters of tens of thousands to millions of stars. They are associated with all…
New views from ESA’s Mars Express reveal fascinating ice-related features in Mars’ Utopia region – home to the largest known impact basin not only on…