Cassini has been circling Saturn for years, but it’s still revealing spectacular things about the planet. Violent weather provides a great spectacle on Earth, as long as it doesn’t actually destroy anything, but it’s nothing compared with what’s happening on Saturn.
Here’s a truly gorgeous image by astrophotographer Mick Hyde, a mosaic of NGC 7000 (the North American nebula) and the Pelican nebula (IC 5070). The structure on the upper left side is the North American nebula, with the darkest lobe of dust near the center forming the “Gulf of Mexico.” The star-forming region is located […]
An artist’s rendering of a colliding wind binary. A colliding-wind binary is a binary star system in which the two members are massive stars that emit powerful, radiatively-driven stellar winds. The location where these two winds collide produces a strong shock front that can cause radio, X-ray and possibly synchrotron radiation emission. Wind […]
Artist’s impression of an active volcano on Venus. Results from a long-term study of Venus find evidence of a clear injection of sulphur dioxide into its upper atmosphere. One possible interpretation is that volcanic activity increased the sulphur dioxide component of the upper atmosphere, although an alternative is that a change in atmospheric circulation dredged […]
A scanning electron micrograph of a squamous cell carcinoma, a type of skin cancer. The cell has been frozen and split open to reveal its nucleus. Source: Anne Weston, LRI, CRUK Related articles Is Skin Cancer Surgery Best for Elderly Patients? Maybe not. (robertbadermd.wordpress.com) Skin Cancer Detection and Prevention Month: Skin Check-ups and […]
During his evening ritual of sharing images taken from the International Space Station, Commander Chris Hadfield posted this gem: a gorgeous night-time view of the southeastern United States, with the Moon hovering over Earth’s limb and the terminator separating night from day. Dawn is just beginning to break to the east, as the ISS flies […]