Palestinian professor and astrophysicist, Imad al-Barghouti, was arrested by Israeli soldiers in the West Bank on Sunday evening.
The 53-year-old professor of space physics at al-Quds University in East Jerusalem was arrested at an Israeli military checkpoint, near the village of Nabi Saleh in the central occupied West Bank.
He had been returning home to a nearby village.
Barghouthi was previously arrested in 2014 while passing though the Israeli-controlled border with Jordan on his way to a conference in the United Arab Emirates.
The leading scientist was interrogated about material he had posted on Facebook. Protests from scientists worldwide led to his release from prison a month later.
Barghouti is a leading researcher, publishing frequently in academic astrophysics journals, and has previously worked for NASA.
Endangered Scholars Worldwide calls for the immediate release of Palestinian scientist Imad al-Barghouthi. ESW is concerned about prosecution, arrest, detention, and professional retaliation against Palestinian scholars in response to the nonviolent exercise of the rights to academic freedom, free expression and free association. The ongoing arrests of academics in Palestinian territory have a profound chilling effect on academic freedom and may represent a grave threat to higher education on a national scale.