X

Posts

April 18, 2014

+
2:08 PM | SpaceX Launch Update: Next Attempt Is Today at 19:25 UTC
Quick update: SpaceX is go today at 19:25 UTC (3:25 p.m. EDT) to launch a Falcon 9 rocket to the International Space Station. The Dragon capsule atop the rocket is loaded with supplies and experiments for the astronauts orbiting the Earth. If it launches on schedule, it will rendezvous with ISS and be grappled on Sunday, April 20 at 11:14 UTC. A launch attempt on April 14 was aborted due to a helium leak in a valve that is involved with the first stage separation after launch. The valve has […]
+
1:09 PM | Wilderness Cannot Be Restored Or Recreated. Only Destroyed.
“Wilderness cannot be restored or recreated. Only destroyed. We are just about to lose our last glimpses into prehistory that connect us to eternity and remember a time before modern man.” (Steve Boyes) Africa’s last-remaining wetland wilderness, Botswana’s Okavango Delta, depends on pristine floodwaters from the world’s largest undeveloped river catchment, the Kavango Basin, in Angola…
+
12:20 PM | Kepler Finds First Earth-size Planet in the Habitable Zone
In a April 17 news release NASA has announced that astronomers using the Kepler Space Telescope have discovered the first Earth-size planet orbiting a star in the circumstellar habitable zone, or the range of distance from a star where liquid water might pool on the surface of an orbiting planet, aka the Goldilocks Zone. Though […]
+
12:00 PM | New Killer Sponges Found in the Deep Sea
The carnivorous invertebrates, discovered deep in the waters off California, use tiny hooks on their bodies to capture prey, a new study says.
+
12:00 PM | April 17th: Exomoons, Eclipses & Launches
Podcaster: Fraser Cain & Morgan Rehnberg
+
11:40 AM | Neutrons method to test dark energy theories by sensitive measurements of gravity at small scales
Non sempre occorre un acceleratore di particelle per fare esperimenti di fisica fondamentale. I primi risultati di un esperimento a bassa energia sulla gravità newtoniana, spinto fino ad un limite […]
+
11:34 AM | Bolden and Holdren reaffirm support for asteroid mission as the next step to Mars
The head of NASA and the President’s science advisor told the NASA Advisory Council (NAC) this week that the agency’s Asteroid Redirect Mission (ARM) remained the next logical step of a long-term strategy to eventually send people to Mars, despite the protestations of some in Congress as well as “outside fan clubs.” “The FY15 budget [...]
+
11:32 AM | Se le femmine (d'insetto) hanno il pene
La femmina introduce il suo pene nella vagina del maschio. No, non ci siamo sbagliati a invertire i sessi e i relativi organi sessuali: su Current Biology infatti un gruppo di ricercatori giapponesi, svizzeri e brasiliani mostra il caso di animali, insetti in questo caso, con genitali a sesso invertito, in cui le femmine hanno il pene, e i maschi l’equivalente di una vagina. Gli insetti studiati dai ricercatori sono quattro specie del genere Neotrogla, sono sati scoperti in Brasile e […]
+
10:00 AM | Hubble Cuts a Core Sample Out of the Cosmos
It's a big, big universe out there and the Hubble Space Telescope bores a hole over halfway out into it with this image, showing a gathering of galaxies near and far. Continue reading →
+
8:00 AM | Colon Cancer Screening Saves Lives?
“Colon cancer screening saves lives.” That’s how I began my latest article for Nature Medicine. The news story was about new non-invasive tests that aim to make screening a lot more pleasant. The lead wasn’t great. You could probably find a dozen other stories that begin the same way. But it at least seemed solid. […]
+
6:34 AM | Kepler-186f, il nuovo gemello terrestre
Si chiama Kepler-186f, è leggermente più grande della Terra, ed è l’ultimo pianeta individuato dal telescopio Kepler della Nasa, nella zona abitabile (ossia a una distanza a cui è possibile trovare acqua liquida sulla superficie) attorno alla stella Kepler-186, da cui appunto prende il nome. Ma Kepler-186f, presentato in uno studio pubblicato su Science, non è solo: altri quattro pianeti orbitano attorno alla stella, tutti individuati tramite il metodo […]
+
6:23 AM | Così si spiega il morbo di Parkinson
Dietro la morte delle cellule neuronali all’origine del morbo di Parkinson si sa da tempo che si nascondo (anche) alcune mutazioni genetiche, ma il meccanismo con cui queste causino da ultimo la degenerazione cellulare non è ben noto. Oggi però uno studio, pubblicato su Cell, risponde in parte a questa domanda, aprendo le porte a nuove ipotesi terapeutiche. Un gruppo di ricercatori della John Opkins University di Baltimora, guidato da Ted Dawson del John Opkins Institute for […]
+
4:49 AM | First "Earth Cousin" Planet Found
Astronomers working with the Kepler telescope, led by Elisa Quintara of the SETI Institute, have announced the discovery of the first planet orbiting another star that meets the two characteristics we have been particularly waiting for.  The planet is Earth-sized AND it orbits its star in the zone where water is likely to be liquid (called the “habitable zone.”)The planet and star have no name, but only a catalog number – Kepler 186.  Located in the constellation of […]
+
3:02 AM | Upon a Sea of Stars by A. Bertram Chandler
A scifi classic! Don’t mess with John Grimes, and don’t ever dare to call him a pirate. He prefers the term privateer, thank you very much. This week, we take a look at the very latest collection of tales of the Galactic Outer Rim by A. Bertram Chandler, collected in one volume for the first [...]
+
3:02 AM | Astro-Vid Of the Week: Adventures in Eclipse Webcasting
Totality! The April 15th 2014 Total Lunar Eclipse. (Photo by Author). Backyard astro-tech has certainly gotten much more sophisticated since we hand-sketched our first lunar eclipse as a kid back in the 1980’s. During this week’s total lunar eclipse, we thought we’d try our hand at live streaming the event. We’ve been a voracious consumer [...]
+
2:00 AM | Upon a Sea of Stars by A. Bertram Chandler
A scifi classic! Don’t mess with John Grimes, and don’t ever dare to call him a pirate. He prefers the term privateer, thank you very much. This week, we take a look at the very latest collection of tales of the Galactic Outer Rim by A. Bertram Chandler, collected in one volume for the first [...]
+
2:00 AM | Astro-Vid Of the Week: Adventures in Eclipse Webcasting
Totality! The April 15th 2014 Total Lunar Eclipse. (Photo by Author). Backyard astro-tech has certainly gotten much more sophisticated since we hand-sketched our first lunar eclipse as a kid back in the 1980’s. During this week’s total lunar eclipse, we thought we’d try our hand at live streaming the event. We’ve been a voracious consumer [...]
+
1:41 AM | Throwback Thursday: Top 5 Signs of New Physics (Synopsis)
“Other than the laws of physics, rules have never really worked out for me.” -Craig Ferguson When you think about the Standard Model of particle physics, you very likely think about all the matter, energy, particles, antiparticles, forces and interactions of the Universe. And you might legitimately worry that this is all there is. Never fear; it can’t…

April 17, 2014

+
10:56 PM | Going Once…. Going Twice…
On Monday (ok, let’s be honest, it was really Tuesday) there was a full lunar eclipse.  I was at the observatory with hundreds of people (in a town so small you can drive from one end to the other in 10 minutes) for about 6 hours.  It was brutal.  Not because of the work, not […]
+
10:00 PM | New Chinese Trademark Law Takes Effect in May.
China’s new trademark law, which takes effect May 1, 2014, is designed to discourage the trademark hijacking and piracy that have caused headaches for foreign companies attempting to do business in China. In July of 2012, Apple paid a $60 million settlement to the Chinese company Proview Technology to acquire the right to use the … Continue reading →
+
9:10 PM | Do all planets spin in the same direction?
Dear Urban Astronomer Do all planets spin the same way, or are there some planets where the sun rises in their equivalent of West? Does it depend on the particular solar system? What about the stars in a galaxy -- do they all spin in the same direction? Do all galaxies spin the same way, or do they even spin at all? Regards Amanda Dominy (extracted from facebook conversation) Dear Amanda First, the short answer: All rotations and revolutions in a planetary system are in the same […]
+
9:00 PM | Federal Appeals Court Upholds EPA Mercury Rule
A federal appeals court upheld the U.S. Environmental Protection Agency’s Mercury and Air Toxics Standards (MATS) requiring power plants install technology to cut emissions of mercury and other air pollutants. MATS was challenged by industry and several states that argued the EPA should have considered costs when determining whether it was “appropriate and necessary” to go forward with the standards. The…
+
7:12 PM | Earth-Likenesses: Have We Discovered Earth 2.0?
Astronomers have announced the groundbreaking discovery of an Earth-sized exoplanet orbiting a star within its habitable zone. Although this is exciting, calling this world "Earth-like" is a little premature. Continue reading →
+
6:54 PM | Earth-size World Around Kepler-186
A World in the Habitable Zone As Etta James once sang in the old standard, “At Last!”  And, now planet-searchers are singing the same tune. Kepler mission scientists have just announced the detection of one of the Holy Grails of exoplanet searches: the first Earth-sized planet in the habitable zone of its star. This is a […]
+
6:19 PM | The Penan Hunter-Gatherers of Sarawak
For the Penan of Sarawak’s rainforest, the raucous call of the white-crowned hornbill has long heralded dawn. Today, however, they are just as likely to be woken by the sound of chainsaws and falling trees. The tropical rainforest of Sarawak in Borneo, East Malaysia, is one of the most biologically rich forests on earth. It…
+
6:09 PM | An Astronomical Discovery: Earth-Size Planet Found in Its Star’s Habitable Zone
I have some cautiously exciting exoplanets news: Astronomers have announced the discovery of a planet that is very nearly the same size as Earth and orbiting its star in the habitable zone—that is, at the right distance from its star to have liquid water on its surface. We don’t know how Earth-like it is, but this shows that we’re edging closer and closer to finding another Earth, and this one is the best bet we’ve found so far. The planet is called Kepler-186f and was […]
+
6:01 PM | World’s First Female “Penis” Found, in Cave-Dwelling Bugs
Four new species of cave insects in Brazil have sex-reversed genitalia, a "completely astonishing" discovery, scientists say.
+
6:00 PM | Most 'Earth-Like' Alien World Discovered
About 500 light-years away in the constellation Cygnus lives a star, which, though smaller and redder than the sun, has a planet that may look awfully familiar.
+
3:57 PM | 3-D Curiosity!
Got your 3-D glasses (Anaglyph 3D) handy? The above image, taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter, shows a stereo view of NASA’s Curiosity Mars rover, its tracks, and the surrounding Martian landscape. (Image Credit: NASA/JPL-Caltech/Univ of Arizona) The image was created by combining information from three […]
+
3:40 PM | Chew On This: Best Picture Yet of Gum 41
Hot young stars blaze at the center of a vast cloud of interstellar hydrogen gas in this stunning new observation by the awesomely powerful MPG/ESO 2.2-meter telescope at the La Silla Observatory. Continue reading →
123456789
816 Results