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John Glenn receives from President Barack Obama the Presidential Medal of Freedom (Photo NASA/BILL INGALLS)

Yesterday John Glenn, the first American to make an orbital flight, passed away. He was hospitalized more than a week ago but no information about his health problems were provided. However, a source linked to his family revealed that his condition was grave and his relatives joined him in the hospital.

On February 20, 1962, John Glenn became the first American to make an orbital flight on the Friendship 7 spacecraft. Instantly, he became a national hero and was honored with the NASA Distinguished Service Medal, which he was given directly by the then US President John F. Kennedy.

When he was still a senator, John Glenn went into space again as part of the crew of the Space Shuttle Discovery, launched on October 29, 1998 for the STS-95 9-day mission. Glenn established the record as the oldest human being to have traveled in space as at the time he was 77. During and after the mission, he underwent a series of tests for a geriatric study on the reactions of an elderly person to a space mission.

Temperature differences between areas with cities and others with vegetation in continental USA (Image NASA's Earth Observatory)

An article published in the journal “Environmental Research Letters” describes a NASA research that used data collected by various satellites to assess the impact of American cities on the rise in temperatures. The conclusions are that in large cities the temperature is from 1° to 3° Celsius (1.8 to 5.4°Fahrenheit) higher than that of the neighboring areas rich in vegetation.

The hitchhiking robot hitchBOT at an exhibition in Semptember 2014

The story of the destruction of the hitchhiking robot hitchBOT (photo ©Archie) in Philadelphia spread quickly on the Internet. The story was peculiar because the protagonist was a robot but it seemed that its misfortune was the result of a vulgar act of vandalism, especially after a video of its destruction popped up on the Internet. Instead, the analysis of the video proves that it’s a fake so now the story turned into a mistery with two suspects.

According to a study described in a paper published in the journal “Science”, between 4.8 and 12.7 million tons of plastic in the oceans were thrown in 2010 by people living within 50 kilometers from the coasts. During that year, a total of 275 million tons of plastic waste were generated in 192 coastal nations.

This research was conducted by a group of researchers at the National Center for Ecological Analysis and Synthesis led by Jenna Jambeck, assistant professor of environmental engineering at the University of Georgia’s College of Engineering. The researchers looked at the debris entering the oceans from land, seas and other sources.

Fabiola Giannotti at the ATLAS experiment (Photo courtesy Claudia Marcelloni/CERN. All rights reserved)

CERN has announced the appointment of Italian scientist Fabiola Gianotti as new Director-General. The formalization will take place at the December meeting of the Council of Delegates that govern CERN. Dr. Gianotti’s mandate will start on January 1, 2016 and will run for five years. She’ll be the first woman to hold that office.