Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... This is a recent (November 2011) NASA diagram summing up the past, present and future (plus a might have been) of US rocketry. €аThe rockets are arranged from left to right in order of size. ... It is towards the larger end we find the most familiar vehicles in the shapes of the Shuttle (NASA?s recently retired Space Transportation System ) and Saturn 5 (still the most capable US launch vehicle to actually fly). ...

TODAY'S LESSON Here's your lesson for today, you better listen up real fucking good/my cloud always has a silver lining, and I love everything that I see /my world is wonderful and no on could ever hurt me/you hate yourself, yes you do, and that is why right now I hate you/you hate yourself, yes you do, and that's why right now I can't stand you/Have you learned your lifes lesson yet ... Why don;t you put that bottle where it belongs?/ ...

2002. Cable News Network Inc. All Rights Reserved. ... Discovery Communications Inc. ... The New York Times Company. ... The Washington Post Company. ... The International Herald Tribune. ... SPACE.com, Inc. ... United Press International. ... Last modified September 22, 2002. ...

... What's New? Bad Astronomy . ... Bitesize Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... There's more stuff going on out there in the world and beyond than we know about, and sometimes we don't even know enough to ask the right questions. ... Or at least, we know what questions to ask? ... These new telescopes may indeed answer all the questions we have now , but what questions do we not know that we don't even know? 2008 Phil Plait. ...

. Computer Ephemeris. Sidereal time. Explanations. Each row contains at 0h of Universal time: month, day, real sidereal time (hours, minutes, seconds), mean sidereal time (only seconds, as a rule, hours and minutes are the same as in real time) and nutation in right ascension: long periodic (with periods greater than 35 days), and then short periodic (periods less than 35 days). Standard IAU 1980 nutation theory is used.

... So my first bit of babble is presenting.. ... Yes comments such as . ... Consider yourself hit by a snowball. ************************************************************************** send this message to as many people as possible, in the first *INTERNATIONAL E-MAIL SNOWBALL FIGHT!* send it back or to people already listed above. send it to your parents, siblings, politicians, teachers, bullies or anyone else you've wanted to hit with a snowball. have fun. but ... Launch one today! ...

Live: Watching for Venus to Cross the Sun . ... Credit Copyright: NASA / SDO the AIA, EVE, and HMI teams Explanation: Today Venus moves in front of the Sun. One way to follow this rare event is to actively reload the above live image of the Sun during the right time interval and look for an unusual circular dark dot. ... This transit is the rarest type of solar eclipse known -- much more rare than an eclipse of the Sun by the Moon or even by the planet Mercury . ... NASA Official: Jay Norris. ...

Never in the history of exploration has there been an undertaking quite like Apollo. ... Few of the half million ever had a chance to travel in space and fewer still walked on the Moon; but most were deeply dedicated and, for them, working on Apollo was much more than a job. ... Apollo was a start. ... By the time of the last three missions, crews were spending three days on the Moon and, out of each twenty-four hours, were staying outside and working hard for six to seven hours at a time. ...

... Public . Science . ... Science Users Information > Observing with ESO Telescopes > Policies and Procedures > Guaranteed Time Observations . ... Guaranteed Time Observations . Public Surveys . Publications with ESO Data . ... Large Programmes . ... Public Surveys Programmes . ... Phase 1 Proposals . ... ESO Data . ... In the case of GTO surveys or focused projects taking a large fraction of the GTO time, i.e. Large GTO Programmes, the whole observing plan may be made public at once. ...

started September 1998 There is an assumption that hides behind almost all of todays software development/engineering practices. ... For most of the history of software development, one thing was always true: computer time costs far more than people time. Twenty years ago, a top computer programmer might have cost $20/hour. At the same time, computer time cost [Need reference] $XXX/hour. ... But as we all know, not only is computer time cheaper, it's also better. ...

Blackholes2 Forum Message . ... Time Particles - And The Lack There Of. ... There is no such thing as time. ... For example time travel isn't possible really. ... The whole idea that travelling faster than light will send you back in time is more than ridiculous. ... No such thing as time, no so such thing as time travel or time particals. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... A good way to keep track of these concepts is the space-time diagram . ... The usual convention is that time runs up the diagram, so the bottom is the past, or early times, and the top is the future, or late times. ... The space-time diagram above shows particles with different velocities. ... The fancy light picture on the left shows both the past and future light cones of the event where the two worldlines cross, while the schematic version on the right is easy to use in more complicated diagrams....

It has been a busy time farewelling old and welcoming new staff members. ... Debbie has joined us as a cleaner and Lodge assistant, while Eric will work on the antenna drives and other power control systems. ... Millimetre observing during January (summer!) term was restricted to four 12-mm proposals (one of which experienced rain) and various tests. ... During the May term, millimetre observations at Mopra will be jointly run by the ATNF and UNSW, with each allocated six weeks of observing time. ...

Plots of warmup and cooldown times for lbw 16K and omt stages: . 07may09: lbw warmup (.ps) ( .pdf ) . ... On the second two cooldowns, the omt cooldown rate flattened out around 180K instead of going all the way down to 80K . ... After 15 minutes of cooldown, the 16K stage switched to cool at the same rate as the omt stage. The 16k stage was around 270K when this happened (the temp that water freezes). it took > 36hours for the 16K stage to cooldown (previous 16k cooldowns took 1.5 hours). ...

... Contents . ... Sidereal time . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Matrix elements for conversion to CIRS . ... Conversion of mean time to sidereal time (with accuracy 0.01 s ) . ... Conversion of sidereal time to mean time (with accuracy 0.01 s ) . ... Conversion of mean time to sidereal time (with accuracy 0.001 s and 0.0001 s ) . ...

... 2012 June 5 . Live: Watching for Venus to Cross the Sun . ... One way to follow this rare event is to actively reload the above live image of the Sun during the right time interval and look for an unusual circular dark dot. ... This transit is the rarest type of solar eclipse known -- much more rare than an eclipse of the Sun by the Moon or even by the planet Mercury . ... Editor's note: Since the transit has ended, the live image was replaced by one taken just before Venus crossed out of Sun. ...

... Gallery . ... The National Time Service and Ionospheric PreтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . Title: The National Time Service and Ionospheric Prediction Service . ... Wehner . Views: 2474 . ... Views: 2846 . ... Views: 2773 . ... Views: 2851 . ... Views: 2803 . ... Views: 2802 . Stibbs . Views: 2703 . ... Views: 2764 . ... Views: 2758 . Powered by Gallery 3.0.9 (Chartres) . ...

Figure 8a. The cooling of the right, bottom secondary support rod is shown for a night in May of 1996. An accurate time of the enclosure opening is not known, but is thought to have been within 15 minutes of the first data point shown in this graph. The squares show the temperature of the ambient air at the time of the rod measurements. ... M3 is the time constant of the exponential fit in units of inverse seconds. Converting to hours gives a time constant of 1.03 hours . ...

... We considered our current level of technology compared to that of an average alien civilization. Regardless of any modest value of L chosen?500 years, 5000 years, or longer?their level of technology is vastly advanced compared to ours. Thus, most science fiction gets it right by having advanced alien technology, but gets it wrong by not making them sufficiently advanced. ... What would alien civilizations at a distance of 100 or 1000 lightyears know of us (hypothetically)? ... Education . ...

. Aristarchus was extremely clever and also figured out a way to determine the ratio of distances between the earth and the moon and the earth and the sun. While wrong, at least he reasoned that the sun was much farther from the earth than the moon. Just Try and Follow this! . Summary of Greek Science .