The Descent of Philae Toward the Comet in Tweets
By THE NEW YORK TIMES
The European Space Agency’s 220-pound lander, named Philae, is marking its fall toward the comet, known as 67P/Churyumov-Gerasimenko, in Tweets.
The European Space Agency lander is sitting in a skewed position on the comet’s surface, compromising some aspects of the $1.75 billion Rosetta mission.
The European Space Agency’s 220-pound lander, named Philae, is marking its fall toward the comet, known as 67P/Churyumov-Gerasimenko, in Tweets.
The Rosetta spacecraft’s Philae lander is attempting to land on Comet 67P/Churyumov-Gerasimenko.
The ambitious mission succeeded, despite a potential showstopper problem, when a signal arrived at Darmstadt, Germany, just after 11 a.m. Eastern time.
Joel W. Parker, a planetary scientist at the Southwest Research Institute, answers questions about putting a 220-pound lander on a comet.
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The United States and China should both be able to meet the stated goals by aggressively pursuing policies that are largely underway, analysts said.
The landmark agreement to cut greenhouse gas pollution is a bet by President Obama that the environment will be a winning cause for Democrats.
President Ellen Johnson Sirleaf said she would not extend the state of emergency, which had angered critics.
As the rate of new infections has slowed, American and Liberian officials are debating whether to shift money that was planned for the centers into other programs to combat future outbreaks.
The West African nation of Mali, which just beat its first outbreak of Ebola, has confirmed a second one that is larger and more threatening, global health authorities said on Wednesday.
The surviving pilot of the SpaceShip Two crash told investigators he did not know that the co-pilot had unlocked two movable parts at the back of the craft.
The computer model identifies a range of factors related to suicide that could allow doctors to follow high-risk soldiers closely and take preventive measures.
Federal officials granted protection to the Gunnison sage grouse on Wednesday, a move that could bring restrictions on oil and gas drilling and other activity to preserve the bird’s habitat in areas of Colorado and Utah.
Weapons that rely on artificial intelligence to decide what to target could become increasingly difficult to control, critics warn.
The body of knowledge about how the brain works is growing, but so is the list of gaps in our understanding. Larry Abbott, a former theoretical physicist, is looking for models to fill them in.
Larry Abbott started his career working with particle colliders, but he realized that the complex mathematics of physics came in quite handy for trying to understand the brain.
A group of researchers at New York University is using sewage water to track diseases and monitor health.
Ichthyosaurs, which loosely resembled dolphins, have long been an evolutionary mystery. Now, researchers say they have recovered an early Ichthyosaur fossil that may fill in the blanks.
Which animals are most and least efficient at digesting food?
Swainson’s warbler — a secretive, rarely seen songbird that nests in the swamplands of the southeastern United States — may no longer be so hard to find. Researchers report that the bird has found a new safe haven.
In part of Borneo, a parasite called Plasmodium knowlesi causes severe malaria three times as often as Plasmodium falciparum, which has long been considered the deadliest form of the disease, new research suggests.
To gain an advantage when hunting, Mexican free-tailed bats emit a special call that interferes with the calls of other bats in search of food, researchers say.
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