ISS astronauts see comet Lemmon 'absorbed' by aurora | Space photo of the day for Nov. 20, 2025

Astronauts aboard the International Space Station (ISS) captured stunning photographs of two comets as they danced above the northern lights. This remarkable event highlights the unique vantage point of the ISS, allowing astronauts to witness celestial phenomena from low Earth orbit.

Astronomers have utilized new computer simulations to address long-standing mysteries surrounding massive radio 'relics' that emerge during the collision of galaxy clusters. These simulations provide insights into the physics of these enigmatic structures, enhancing the understanding of cosmic phenomena.

Astronauts aboard the International Space Station (ISS) captured stunning photographs of two comets soaring over Earth's auroras. This event highlights the unique vantage point of the ISS, allowing astronauts to witness celestial phenomena from low Earth orbit. Notably, one of the comets, SWAN, is not expected to return for another 22,554 years.

Rocket Lab successfully launched a satellite for a 'confidential commercial customer' on November 20, shortly after announcing the launch. The details regarding the satellite's purpose and the identity of the customer remain undisclosed.

A 20-light-year-wide structure known as the 'Diamond Ring' has been observed in space, potentially formed by the bursting of a cosmic bubble. This unique flat shape remains a subject of scientific investigation, as researchers seek to understand the processes that lead to such formations in the universe.

Blue Origin, founded by Jeff Bezos, has announced plans to develop a 'super heavy' version of its New Glenn rocket, which recently achieved a successful second launch. This new variant aims to enhance the rocket's capabilities and performance.

A new model has successfully mapped a record-breaking 100 billion stars in the Milky Way, significantly enhancing simulation detail. This advancement accelerates processing time and integrates smaller-scale events, such as supernova explosions, alongside larger galactic processes.

Uranus will reach its brightest point in the sky on November 21, appearing directly opposite the sun from Earth's perspective. This astronomical event allows observers to see the planet more clearly than at other times of the year.