Washington - A Florida pharmacy that mixed medication for 21 polo horses before they mysteriously died over the weekend said Thursday it incorrectly mixed the substance, the Palm Beach Post reported online.

The horses, which belonged to the Venezuelan team La Lechuza owned by Venezuelan multimillionaire Victor Vargas, died shortly before a quarter-finals match was to begin Sunday at the 105th US Open Polo Championship in Wellington, Florida.

Washington - US President Barack Obama marked Holocaust Remembrance Day on Thursday by warning that preventing genocide in the future depends on the world's willingness to confront hatred wherever it arises.

"Bearing witness is not the end of our obligation. It's just the beginning. We know that evil has yet to run its course on earth," Obama said. "We've seen it, in this century, in the mass graves and the ashes of villages burned to the ground and children used as soldiers and rape used as a weapon of war."

Washington - World Bank President Robert Zoellick on Thursday warned that protectionism was rising as governments battle to keep domestic industries alive, and called on wealthy nations to invest more money in social services for poor countries struck by the global recession.

"The danger of protectionism is increasing," Zoellick said at a press conference in Washington, ahead of a semi-annual meeting of members of the World Bank and its sister lender, the International Monetary Fund (IMF), this weekend.

Washington, April 23: Astronomers have found the most distant signs of water in the Universe to date, in the form of water vapor contained in a jet ejected from a supermassive black hole at the center of a galaxy.

Dr. John McKean of the Netherlands Institute has made the discovery for Radio Astronomy (ASTRON).

The water emission is seen as a maser, where molecules in the gas amplify and emit beams of microwave radiation in much the same way as a laser emits beams of light.

Washington, April 23: Astronomers have found three brown dwarfs with estimated masses of less than 10 times that of Jupiter, making them among the youngest and lowest mass sub-stellar objects detected in the solar neighborhood to date.

The observations were made by a team of astronomers working at the Laboratoire d’Astrophysique de l’Observatoire de Grenoble
(LAOG), France, using the Canada-France-Hawaii Telescope (CFHT).

Washington, Apr 23: American actress Alicia Silverstone and a number of other Hollywood celebs have joined hands in making a spoof about traditional views on marriage.

Other stars who have joined Silverstone, are Lance Bass, George Takei, Sophia Bush, Jason Lewis, Lynne Stewart, Liz Feldman, Drew Droege, Mike Hitchcock, Daniele Gathier, Jay Lay, Erin Foley, Jane Lynch and Sarah Chalke.