The Perseverance rover will explore Jezero Crater and take the first step toward bringing rocks from the neighboring planet back to Earth.
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Between 1410 and 1480, Venetian glass beads arrived in America, far north, in Alaska. They must have traveled overland through Asia and crossed the Bering Strait by ship.
Space remains a continuum.
Astronomers at the Harvard Center for Astrophysics have used daily global maps from NASA's Mars Global Surveyor and Mars Reconnaissance Orbiter missions to Mars for eight years. to map nothing less than 14,974 dust storms larger than 100,000 square kilometers and lasting more than a day.
Information for future missions
In this way, an attempt has been made to analyze particularities and patterns in storms that significantly affect the transmission, thermal structure and circulation of the Martian atmosphere.
All this information is a very valuable new resource for modeling the Martian atmosphere and mission planning.
Huge dust storms, which persist for weeks and even months, obscuring the entire planet, can arise suddenly, although they are more frequent after the planet's perihelion and in the Southern Hemisphere, when it is the end of spring there, They are caused by winds of more than 150 km/h.
Just as on Earth a wind of 50 to 60 km/h is enough to raise clouds of dust, on Mars, given the tiny density of the air, only a gale of about 200 km/h can produce the same effect. These storms can reach planetary dimensions.
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The news
14,974 dust storms mapped on Mars over eight years
was originally published in
Xataka Science
by
Sergio Parra
.
Behavioral and linguistic changes in tweets in Spanish published by users who suffer from depression and who are taking antidepressant medication have been identified by Researchers from the Biomedical Informatics Research Program (GRIB) of the UPF and the Medical Research Institute of the Hospital del Mar (IMIM) of Barcelona.
The main objective was to detect the effects of antidepressants through changes in the language used in their tweets or in the way these people used Twitter.
668,842 tweets
He study included 186 users and their timelines with a total of 668,842 tweets.
During periods in which users reported that they were receiving treatment with antidepressant medications, their Twitter activity increased with longer messages but posting fewer messages at night.
They also interacted more with other users and there was also an increase in positive emotions related to happiness and surprise.
As explained Ferran Sanz, professor at the Department of Experimental and Health Sciences at UPF (DCEXS) and director of the Research Program in Biomedical Informatics (GRIB) at IMIM and UPF:
The use of techniques based on big data and text mining, which allow us to detect changes in the way in which users interact on social networks such as Twitter, can provide us with new opportunities for tracking and monitoring patients who suffer from one of the most widespread problems. disabling health conditions.
–
The news
Behavioral and linguistic changes are studied in the tweets of users with depression and taking antidepressants.
was originally published in
Xataka Science
by
Sergio Parra
.
Dangerous chemicals aren’t just on the outside of your car.