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Astronomy & Astrophysics 101: Dwarf Planet

Pluto 180° Longitude. Pluto was reclassified from a planet to a dwarf planet in 2006. Credit: NASA, ESA and M. Buie (Southwest Research Institute) A…

Astronomy & Astrophysics 101: Habitable Zone

This artist’s impression shows the view from the surface of one of the planets in the TRAPPIST-1 system. At least seven planets orbit this ultracool…

Prolonged Heatwave Scorches India

Credit: Contains modified Copernicus Sentinel data (2022), processed by ESA, CC BY-SA 3.0 IGO India is currently experiencing a lengthy heatwave, with temperatures in numerous…

Astronomy & Astrophysics 101: Galaxy

This Hubble Space Telescope image features NGC4826 — a spiral galaxy located 17 million light-years away in the constellation of Coma Berenices (Berenice’s Hair). This…

The Moon: Going Where No Satnav Has Gone Before

Artist’s impression of Surrey Satellite Technology Ltd (SSTL)’s Lunar Pathfinder satellite that will provide communications services around the Moon. Credit: SSTL The test version of…

Astronomy & Astrophysics 101: Electromagnetic Spectrum

The electromagnetic spectrum is a range of frequencies of electromagnetic radiation. From long to short wavelength, the EM spectrum includes radio waves, microwaves, infrared, visible…

Astronomy & Astrophysics 101: Dwarf Galaxy

Hubble Space Telescope image of NGC 5477, an archetypal dwarf galaxy in the Messier 101 group. Without obvious structure, but with visible signs of ongoing…

Exploring Earth From Space: Earth Day [Video]

This spectacular image of Earth was captured by the Meteosat Second Generation series of missions on March 23, 2022. Satellites provide essential information for everyday…

Astronomy & Astrophysics 101: Circumstellar Disc

Astronomers have used the NASA/ESA Hubble Space Telescope to take the most detailed picture to date of a large, edge-on, gas-and-dust disc encircling the 20-million-year-old…