* Astronomy

Operation Redwing was a United States series of 17 nuclear test detonations from May to July 1956. Read more

University of Arizona astronomers had been preparing for days for this mission to verify the recent apparent discovery of water on the surface of Pluto's only known moon. Atop Mount Hopkins in the Santa Rita Mountains on April 3, 1987, astronomer George Rieke, above, went through a final instrumen...

World Metrology Day celebrates the signature by representatives of seventeen nations of The Metre Convention on 20 May 1875. The Convention set the framework for global collaboration in the science of measurement and in its industrial, commercial and societal application. Read more

The 1883 eruption of Krakatoa began in May 1883 and culminated with the destruction of Krakatoa on 26 August 1883. Read more

The Searsmont (H5) meteorite fell in Maine, USA, on the 21st May, 1871. A total mass of 5.4 kg was recovered. 44° 22'N, 69° 12'W

Hayato, known before launch as K-Sat, or the Kagoshima Satellite, is a Japanese satellite which was launched in May 2010. It is a student-built spacecraft, which is operated by Kagoshima University, and is being used for technology demonstration and remote sensing. Read more

The Werdama (H5) meteorite fell in Al Jabal al Akhdar, Libya, on the 21st May, 2006. A total mass of 4 kg was recovered. 32° 47' 50"N, 21° 47' 14"E

Title: The Detonating Meteor of 1926 September 6. An Instance of an Outer Zone of Audibility. Authors: F. J. W. Whipple. The object of the present note is to set out the evidence for such a zone in the case of the detonating meteor of 1926 September 6. I have a large collection of observations of this mete...

Title: The great detonating meteor of 1879, February 24 (part 1) Authors: Clark, J. E. On 1879, February 24, a magnificent meteor startled the few people abroad about 3h A.M. in East Yorkshire and Durham. The exact time, as given by several independent observers at York, was 2.53 A.M. by the Minister...

Title: brilliant detonating fireball of January 25, 1894 Authors: Denning, W. F. A very murky condition of sky, with occasional rain, appears to have prevailed over a considerable part of England on the night of 1894 January 25, and the only celestial objects visible were Jupiter and two or three of...

The Tenham (L6) meteorite fell in Queensland, Australia, in 1879. A total mass of 160 kg was recovered. 25° 44'S, 142° 57'E

The Dhurmsala (LL6 chondrite) meteorite fell in Himachal Pradesh, India, on the 14th July, 1860. A total mass of 32 kg was recovered. 32° 14'N, 76° 28'E

Coast man finds suspected meteorite Gorman Tobin found a rock on his morning walk on Tuesday. He said he noticed the grass looked like something had hit it at high speed, with the impact causing the grass to "explode". Inside a 20cm deep hole he found the small rock, which he thinks could hav...

Possible meteorite fall in La Paz, Baja California Sur, Mexico Insistentes llamadas que se están recibiendo en los servicios de emergencia señalan que un meteorito ha caído en las cercanías de la ciudad capital, lo que originó una fuerte explosión cuya onda expansiva cimbró todas las viviendas de...

Central ring structure identified in one of the world's best-preserved impact craters Authors: A.C. Gebhardt and F. Niessen ABSTRACT Seismic refraction and reflection data were acquired in 2000 and 2003 to study the morphology and sedimentary fill of the remote El'...