120 °C), so they were more suitable for hot environments. Moreover, they were able to exploit a wider range of solar radiation. The solar cells were separated by aluminium strips that helped to reject heat. All
“At that time, it appeared to be just another millisecond radio pulsar, but now here it was shining in X-rays – this is clearly no ordinary pulsar,” adds Dr Papitto. The astronomers kept monitoring the object with X-ray telescopes, but also started a series of radio observations, on ...
Electrical Power System (EPS), comprising one solar array wing providing power to the spacecraft and payload. Attitude and Orbit Control System (AOCS) composed of a coarse sun sensor, magnetometers, coarse rate sensors, star trackers, a GNSS receiver and control actuators including thrusters, magn...
Using a vertical line array and ambient noise to obtain measurements of seafloor reflection lossV. Young
Bank Telescope; the NASA/ESA Hubble Space Telescope; the William Herschel Telescope at La Palma, Spain; the IRAM/Plateau de Bure Interferometer (PdBI); the Max-Planck Millimetre Bolometer 2 (MAMBO2) at the IRAM 30m telescope; the Combined Array for Research in Millimeter-wave Astronomy (CARMA...
ESA’s Herschel space observatory is expected to exhaust its supply of liquid helium coolant in the coming weeks after spending more than three exciting years studying the cool Universe.
In the first of a series of short articles focusing on the new European instruments carried on MetOp, we take a look at how the ASCAT (Advanced Scatterometer) instrument will measure winds over the oceans to improve weather forecasting and climate resear
Solar Orbiter was many years in the making: the first mission study took place in ESA’s Concurrent Design Facility back in 1999. The concept was to create a spacecraft that would venture as close to the Sun as possible and still image it, without its ca
The mirror array seen in the image reflects simulated sunlight into the chamber, at the same time as the walls are pumped full of –190°C liquid nitrogen, together recreating the extreme thermal conditions prevailing in orbit. Portuguese-bornEdgar Martinscollaborated closely with ESA to produce a...
is proposing to theNovember 2022 CM22 ministerial meetingin Paris that Space Rider be supported through first re-flight and consolidation of commercial services, and that work continue to prepare for operations with Vega-E, the bigger, more powerful launch vehicle being readied to succeed Vega-C....