Curiosity revealed relatively high levels of sulfate salts in the rocks of the Gale Crater. Mars has in the past been a relatively warm and aquatic world filled with rivers and lakes, and it had an ocean that covered much of the northern hemisphere. About 4.2 billion years ago things started to change.
Mars has lost its magnetic field that has protected the atmosphere from the solar wind. This caused the planet to become cold and dry. Today, Mars has an atmosphere that is only 1 percent of the Earth, and fortunately our planet still has a magnetic field.
NASA scientists in charge of the Curiosity rover mission have announced new discoveries for the Red Planet, in particular the Gale Crater where the rover is conducting research. Large levels of sulfate salts have been detected in the crater rocks, accumulated by sediment at various levels.
The rover was able to gather new evidence of the ancient Salt Lake 3.7 billion years ago on the Gale Crater.
Scientists believe more will be known about the evolution of lakes in the Gale Crater in the coming period.
"We know we'll get an answer, maybe a big answer to what happened next to the lake, including the sulfate response," NASA said.
Japanese scientists from the medical sector at Tokorozawa Military Academy made artificial blood that suits all blood groups.
They point out that blood can be stored for up to a year at room temperature.
The research team performed the tests on sick rabbits who lost large amounts of blood.
The research has proved to be successful and now hope that blood will be useful for sick people.
Japanese scientists claim that rabbits who have successfully passed the experiment have no negative side effects from artificial blood.
Professor Manabu Kinoshita claims that artificial blood will save human lives as well.
Artificial blood consists of platelets and red blood cells.
The finding was reported in the US medical journal TRANSFUSION Journal.