The pressure is rising at ESA’s mission control. A European Space Agency (ESA) satellite dodges out of the way of a mystery piece of space junk that was spotted just hours before a potential collision. This means a vital step in the spacecraft’s ongoing journey to safer skies now has to be quickl
. It’s comprised of three satellites, A, B, and C – affectionately known as Alpha, Bravo, and Charlie.– was detected hurtling towards Alpha at 16:00 CEST , on June 30. From the trajectory, a potential collision was predicted just eight hours later, shortly after midnight. The chance of impact was great enough that Alpha needed to get out of the way – fast.
The picture shows Sentinel-1A’s solar array before and after the impact of a millimetre-size particle on the second panel. The damaged area has a diameter of about 40 cm, which is consistent on this structure with the impact of a fragment of less than 5 millimeters in size. Credit ESA’ – requires a lot of planning.
Solar cycle 25 prediction, NOAA, July 2022. The number of sunspots on the surface of the Sun increases and decreases in solar cycles of approximately 11 years. Our star is currently entering a very active period in its 25th solar cycle. Credit: NOAA’ right now. This activity is increasing the density of Earth’s upper atmosphere. Satellites are running through ‘thicker’ air, slowing them down and requiring them to use up more limited onboard fuel to stay in orbit.
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