It is now widely accepted that Mars was once a very wet place. About four
billion years ago Mars would have had enough water to
cover its entire surface in a liquid layer about 140 metres deep. It is likely that the liquid would have pooled to form an ocean
occupying almost half of Mars’s northern hemisphere, and in some regions
reaching depths greater than 1.6 kilometres. This artist’s impression shows what the planet may have looked like with its ancient ocean. Imagine: could life have lived in such a place?
Earlier today, well-known American theoretical physicist Laurence Kraus tweeted that the results of a recent experiment looking for gravitational waves have finally been peer-reviewed and we just might have the first direct evidence that these light-speed ripples in the Universe actually exist.
If it turns out that we really do have definitive evidence that gravitational waves exist - the results of the study have not yet been released to the public - we’re looking at Nobel Prize-worthy stuff, but the team behind the experiment is urging everybody to be patient and not to jump to conclusions just yet, despite what’s going on in your Twitter feed.
“The official response is that we’re analysing the data,” Gabriela González, a physicist from Louisiana State University and spokesperson for the LIGO (Laser Interferometer Gravitational Wave Observatory) group that ran the experiments, told Nature when rumours started flying back in September.
Some people find it difficult to imagine what the entire universe would look like. However, Pablo Carlos Budassi, a visionary artist, has stepped in and let his imagination wander as far as infinite space.
Keep reading to view a zoomed in short of the universe captured in one image, as well as to how the artist accomplished such ambitious task.
The International Space Station is seen as a small object in the upper left of this photo of the Moon, in the skies over the Houston area. (Photo: Lauren Harnett / NASA via the Telegraph)
The International Space Station seen from Space Shuttle Discovery as it left the Space Station 11 June 2008. The 13-day STS-124 mission brought the Japanese Kibo laboaratory to the Space Station.
