Space and Planetary Sciences

Imaggeo On Monday: International Space Station transiting the Sun

Eliza Teodorescu October 4, 2021

International Space Station transiting the Sun. Credit: Eliza Teodorescu (distributed via imaggeo.egu.eu)

The International Space Station, a human-made, life-supporting habitat, and a most complex and unique scientific laboratory, orbits the Earth in only 90 minutes – that is 16 times a day! Even so, only occasionally, we earthlings have the privilege of seeing it’s dark outline against the much brighter surfaces of the Sun or Moon. Timing is of crucial importance if you want to see this, ...[Read More]

Imaggeo On Monday: Aurora Australis with Southern Cross and Pointer stars

Ulrich Schreiber February 22, 2021

Aurora Australis with Southern Cross and Pointer stars. Credit: Ulrich Schreiber (distributed via imaggeo.egu.eu)

This view from the Port Hills of Christchurch in New Zealand glances South over Governors Bay into the distance, where an Aurora Australis is visible near the horizon. Almost in the center of the starry sky the Southern Cross with its 2 Pointer stars are showing prominently. Description by Ulrich Schreiber, after the description on imaggeo.egu.eu. Imaggeo is the EGU’s online open acc ...[Read More]

A Mission to Mars

Hazel Gibson February 19, 2021

The Emirates Mars Mission Hope probe (Photo credit: MBRSC)

February 2021 is an important month for Martian missions, with three arriving at our planetary neighbour within 10 days. Many people have been following the USA’s NASA Perseverance mission, as they landed the new Perseverance rover, with it’s specially designed Ingenuity helicopter in the Jezero Crater in the last 24 hours. Earlier this month the Chinese mission Tianwen-1 also entered ...[Read More]

Imaggeo On Monday: Increasing Moon – seen from Hamburg

Wolfgang Fraedrich February 15, 2021

Increasing Moon – seen from Hamburg. Credit: Wolfgang Fraedrich (distributed via imaggeo.egu.eu)

The image shows the increasing moon on March 16, 2016, seven days before the full moon. 53.3% of the lunar front are already illuminated. The moon does not glow on its own, but its surface reflects the sunlight. The sun always illuminates a complete half of the moon, which, in its orbit around the earth, always turns its face (which we see at full moon) toward the earth. The reason for the ...[Read More]