Blazar variability

Active galactic nuclei (AGN) are supermassive black holes at the centers of galaxies that are accreting material. These AGN emit jets of charged particles that move at speeds close to that of light, transporting huge amounts ...

Egypt draws ire with artifacts' move to busy Tahrir Square

Egypt's recent decision to transport ancient Pharaonic artifacts to a traffic circle in the congested heart of Cairo has fueled fresh controversy over the government's handling of its archaeological heritage.

NASA finds a weaker Sarai now a depression

NASA-NOAA's Suomi NPP satellite provided forecasters with an image of Tropical Cyclone Sarai and it showed a much weaker storm near Tonga in the South Pacific Ocean.

Giant magnetic ropes seen in Whale Galaxy's halo

Using the National Science Foundation's Karl G. Jansky Very Large Array radio telescope, a team of astronomers has captured for the first time an image of large-scale, coherent, magnetic fields in the halo of a faraway spiral ...

Plants model more efficient thermal cooling method

When drops of water touch the surface of a lotus flower leaf, they form beads and roll off, collecting dust particles along the way. In contrast, water droplets on a rose petal also form beads, but remain pinned to the petal's ...

page 1 from 3