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A team of scientists

has identified a new way to make latent HIV reveal itself

could help overcome one of the biggest obstacles to finding a cure for HIV infection

meras on NASA's spacecraft Cassini recently saw what appear to be waves on one of Titan's largest methane lakes

a signal scientists have long searched for but never found

If confirmed, the discovery would mark the first time waves have been seen outside Earth.

Astronomers announced

that they have discovered a new type of planet - a rocky world weighing 17 times as much as Earth

Theorists believed such a world couldn't form because anything so hefty would grab hydrogen gas as it grew and become a Jupiter-like gas giant

Sunspots

In 1611, a publication on the newly discovered phenomenon of sunspots was dedicated. Narratio de maculis in sole observatis et apparente earum cum sole conversione. (“Narration on Spots Observed on the Sun and their Apparent Rotation with the Sun”). This first publication on such observations, was the work of Johannes Fabricius, a Dutch astronomer who was perhaps the first ever to observe sunspots. On 9 Mar 1611, at dawn, Johannes had used his telescope to view the rising sun and had seen several dark spots on it. He called his father to investigate this new phenomenon with him. The brightness of the Sun's center was very painful, and the two quickly switched to a projection method by means of a camera obscura

Lightning experiment

Intense light from the enormous explosion of a star more than 12 billion years ago -- shortly after the Big Bang -- recently reached Earth and was visible in the sky.

Known as a gamma-ray burst, the intense light captured in the night sky resulted from one of the biggest and hottest explosions in the universe, occurring shortly after the Big Bang

A team of researchers

has found that spatial awareness shifts to the right when people are falling asleep

another team of researchers reported noting that people experiencing reduced alertness due to sleepiness, tended to have alterations to their spatial awareness

It’s oft-repeated that black holes are powerful gravity wells, because they represent a dense concentration of matter in one location

magnetic fields

A new study suggests that

the spin rate of spacecraft is slightly below what it should be

the spacecraft is spinning at 19.16 rpm. “The mission specification is 19.75 +/- 0.2 rpm

are now receiving information from the spacecraft’s magnetometer

Armstrong demonstration of FM radio to FCC

In 1936, Edwin H. Armstrong demonstrated his invention of FM radio in Washington D.C. to a fact-finding investigation conducted by the Federal Communications Commission into the future of radio and television. His revolutionary method modulated the frequency of a broadcast radio wave to carry the audio signal (FM), instead of the existing use of amplitude modulation (AM). Armstrong's new system utilized a higher frequency band than was used by existing commercial radio transmitters. It eliminated all static and outside interference. Several hundred representatives of the radio industry were present. Armstrong presented the differences between the old and new methods with a series of sound-film recordings of the same program under the different conditions. FM was clear of the hissing, buzzing and crackling static noises of AM