May 17, 2017

This composite image of the Crab Nebula, a supernova remnant, was assembled by combining data from five telescopes spanning nearly the entire breadth of the electromagnetic spectrum: the Karl G. Jansky Very Large Array, the Spitzer Space Telescope, the Hubble Space Telescope, the XMM-Newton Observatory, and the Chandra X-ray Observatory.

A protester attacks with a hammer to a riot police officer during clashes at a nationwide general strike in Athens, Greece. Workers walked off the job for an anti-austerity general strike that was disrupting public and private sector services across the country.

Flagbearers of a Chinese honor guard stand in formation before a welcome ceremony for Argentina's President Mauricio Macri at the Great Hall of the People in Beijing.

People their their caps into the air upon the completion of the United States Coast Guard Academy Commencement Ceremony in New London, Connecticut.

Students who are trained to become flight attendants practice a standing posture at a vocational school in Shijiazhuang, Hebei province, China.

Spanish bullfighter Roman Collado performs with a Lagunajanda ranch fighting bull during a bullfight at the Las Ventas bullring in Madrid, May 16, 2017.

Bathers rest on a swimming platform at the Stadtparksee natural public pool in Hamburg, northern Germany, where temperatures reaches up to 26°C (78.8° F).

An Indian man walks over a dry reservoir on the outskirts of Chennai.

Bruce Gibbons is seen surrounded by grazing kangaroos as he plays a shot during a practice session at Gold Creek Golf Club in Canberra, Australia.

A construction crew works to remove a monument of Confederate General P.G.T. Beauregard at the entrance to City Park in New Orleans, Louisiana,

Kosovo artist and chef Alkent Pozhegu poses near a mosaic showing the portrait of Albanian-born singer Rita Ora, which he made from plant seeds, in Gjakova. Pozhegu aims to reach the Guiness World of Records for the largest seed mosaic with this 300-square-meter installation.

Argentina's Juan Martin Del Potro serves the ball to Britain's Kyle Edmund during their match at the Italian Open tennis tournament, in Rome.