There are many worlds and many systems of Universes existing all at the same time, all of them perishable.

— Anaximander 546 BC

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Updated: 5 hours 7 min ago

Canada’s wildfire season begins

Thu, 05/16/2024 - 8:15am

Wildfire season has arrived in full force in Canada, prompting evacuation orders and alerts in several towns in British Columbia and Alberta due to the danger of uncontrolled blazes.

Hazardous smoke from the fires has also triggered air quality alerts in Canada and the northern US. Satellite technology, including the Copernicus Sentinel-5P satellite and ESA’s Fire Atlas, plays a crucial role in monitoring these wildfires.

Categories: Astronomy

Webb detects most distant black hole merger to date

Thu, 05/16/2024 - 4:00am

An international team of astronomers have used the NASA/ESA/CSA James Webb Space Telescope to find evidence for an ongoing merger of two galaxies and their massive black holes when the Universe was only 740 million years old. This marks the most distant detection of a black hole merger ever obtained and the first time that this phenomenon has been detected so early in the Universe.

Categories: Astronomy

SOHO’s view of the 11 May 2024 solar storm

Wed, 05/15/2024 - 6:00am
Video: 00:00:29

Over the weekend of 10–12 May 2024, Earth was struck by the largest solar storm in more than a decade. While many of us enjoyed colourful auroras lighting up Earth’s protective atmosphere, spacecraft had to endure being buffeted by incredibly strong solar winds and electromagnetic radiation.  

Positioned between the Sun and Earth, the ESA/NASA Solar and Heliospheric Observatory (SOHO) caught the entire solar outburst on camera. The Sun can be seen spewing out clouds of particles, with an extremely large burst sent to Earth on 11 May. The bright spots on the left and right are Jupiter and Venus. 

This video was taken by SOHO’s LASCO instrument, a coronagraph made up of a telescope with a disc blocking the centre of view. By blocking out the direct light coming from the Sun, the instrument can see light from the surrounding corona.  

SOHO is not the only ESA spacecraft studying solar activity and space weather. ESA’s Directorates of Science, Human and Robotic Exploration, Earth Observation, Operations, and Technology, Engineering and Quality all have missions and/or other activities directly connected with this topic. Together, they form the ESA Heliophysics observatory or more musically, ESA’s Heliophysics Orchestra.  

Categories: Astronomy

A cosmic chronicle

Tue, 05/14/2024 - 5:00am

Are you ready for the greatest story ever told? Launched in France on 25 April 2024, Space Odyssey is the first complete history of space in graphic novel form. Drawing on the latest scientific and historical sources, it tells the story of the men and women who pioneered humankind's journey into space.

Categories: Astronomy

The spacecraft control centre of the future

Tue, 05/14/2024 - 4:10am
Categories: Astronomy