Watch Director General's annual press conference 2022
-
Similar Topics
-
By NASA
Watch SpaceX's 28th Cargo Launch to the International Space Station (Official NASA Broadcast)
-
By European Space Agency
Join us live to follow the ‘Ready for the Moon’ event, a high-level political conference on the challenges and ambitions for Europe's space sector. ESA Web TV will broadcast on its Channel Two the conference, including the media briefing on 2 June starting at 14:00 CEST (13:00 BST).
View the full article
-
By USH
It's fascinating to explore the differences in jump height on various celestial bodies within our solar system, but how high you would jump on other planets or moons?
Image credit Metaballstudios.
On Earth, with its moderate gravity, the average human jump height is approximately 0.45 meters. However, when it comes to Jupiter, which is about 300 times more massive than Earth, the gravitational force is significantly stronger. Jumping on Jupiter would require much more strength, and your jump height would be considerably reduced compared to Earth.
As for Phobos, one of Mars' moons, the situation is quite intriguing. Phobos has an extremely weak gravitational force due to its small size and mass. In fact, its gravity is so weak that if you were to jump with the same force you use on Earth, there's a chance you would never land back on Phobos. Your jump would carry you to a height of 773 meters, and since Phobos lacks sufficient gravity to pull you back down, you would simply keep floating away into space.
These comparisons highlight how the force of gravity varies across different celestial bodies and the impact it has on our physical abilities.
Average human jump height on:Earth - 0.45 m Jupiter - 0.17 m Neptune - 0.39 m Uranus - Saturn - Venos: 0.48 m Mars - Mercury: 1.18 m Moon: 2.72 m Pluto: 7.11 m Ceres: 15.75 m Mianda (Uranus moon): 57.00 m Phobos: 773.00 m
The intriguing video (3D comparison) below made by Metaballstudios highlights how the gravitational forces of different worlds can greatly affect our ability to jump.
View the full article
-
By European Space Agency
Video: 00:01:20 Satellites play a vital role in monitoring the rapid changes taking place in the Arctic. Tracking ice lost from the world’s glaciers, ice sheets and frozen land shows that Earth is losing ice at an accelerating rate.
Using information from ESA’s ERS, Envisat and CryoSat satellites as well as the Copernicus Sentinel-1 and Sentinel-2 missions, research led by Tom Slater of the University of Leeds, found that the rate at which Earth has lost ice has increased markedly within the past three decades. Currently, more than a trillion tonnes of ice is lost each year.
To put this into perspective, this is equivalent to an ice cube measuring 10x10x10 km over Oslo’s skyline. Putting it another way, the amount of ice loss globally is equivalent to 12 000 times the annual water use of the Norwegian capital.
The sooner Earth’s temperature is stabilised, the more manageable the impacts of ice loss will be.
Continuity in satellite data is the key to predicting future ice losses, and to assist in mitigating the threats posed by sea-level rise, shrinking high mountain glaciers and further climate feedbacks. The Copernicus Expansion missions, CRISTAL, CIMR and ROSE-L have been designed to fill the gaps in current Sentinel capabilities for comprehensive monitoring of changes in the global ice cover.
View the full article
-
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.