23 August 2021
Earth's magnetic field weakens every 200 million years, new study says
... widespread disruption in all parts of the ecosystem. How could UV radiation increase to such a level that 70-82 percent of all marine species were wiped out? A few years ago, a team of researchers suggested that rapid reversals in the direction...
March 2015
ESA’s Clean Space Initiative and the role of the LCA tool
... mission after that evocative description The dropping of launcher elements in the ocean poses similar problems, as the marine effects of these disposals have yet to be researched. Accordingly, separate activities to enhance the LCA methodology with...
October 2015
Copernicus, ESA’s most ambitious Earth Observation programme
...-weather, day-and-night mission will enable a SAR in C band supporting Copernicus operational services for land, marine, and risk management. The first satellite, Sentinel-1A, was launched in April 2014. Sentinel-2: This is a polar-orbiting...
January 2016
Is Jupiter Really Our Protective Shield?
... Vol. 346 no. 6209 pp. 623-626 DOI: 10.1126/science.1256717. 8 Raup, D.; Sepkoski Jr, J. (1982). Mass extinctions in the marine fossil record. Science 215 (4539): 1501-1503. doi:10.1126/science.215.4539.1501. 9 Alvarez LW, Alvarez...
March 2016
Space Oddities: The Problem with Imagination
...) is not a household name by anyone’s standard, yet she automated real-time tracking systems for Ranger and Mariner space missions! Of course, 1952 also saw the start of the ‘Miss Guided Missile’ beauty pageant which...
August 2016
Fireflies and saucers
During his first orbital flight on the Mercury-6 spacecraft, astronaut John Glenn noticed a strange phenomenon. The spacecraft was in orbit and, when the Sun came up, he reported with great excitement that he was surrounded by thousands of small ...
