Send Your Name to Mars

   As the next mission to the planet Mars progresses toward a July 2020 launch NASA has invited the public to send your name onboard the Mars 2020 Rover.
Use this link to go directly to the send your name website.


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Two ISS Midwest Flyovers

   Approximately every 90 minutes the International Space Station (ISS) completes an orbit around the Earth. At the correct times, around sunset and sunrise, the large solar panels on the ISS reflect sunlight downward toward the Earth’s surface. Depending on the orientation of the solar panels and where you are you may be able to see the reflected sunlight off the solar panels. To the naked eye the ISS may appear as bright as Venus, around a -4 apparent magnitude.
   This evening, March 21st and tomorrow evening the 22nd the ISS will be visible, weather permitting, as it passes over the midwest United States. Use the links below to see visibility opportunities for your location.

   The ISS travels in excess of 17,000 miles per hour and it takes maybe 6 minutes or so to cross the United States from west to east.

   Two excellent websites for ISS viewing information are below. You will need to input your location information at both sites.

   ISS Sightings
   At the NASA web site you will get a list of the next several dates and times for viewing the ISS that includes it’s rising and setting times and directions of travel (always west to east), and some other information. Pay attention to the maximum altitude and length of time above the horizon.

   Heavens Above
   The Heavens Above website provides a list of viewing opportunities like the NASA web site but in addition you may see a star map showing the ISS path across the starry sky. You will find that this web site has quite a lot to offer with viewing information ranging from the ISS to Iridium satellites and other satellites, planet information, and so on. Well worth bookmarking.


Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

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Mars, Phone Home!

mars-solar-conjunction-above   Thursday July 27th the planet Mars will be at solar conjunction, on the opposite side of the Sun from the Earth. Mars will reappear on the west side of the Sun as a morning planet next month and gradually will become more visible in the morning skies.
    So while Mars is out of sight for observers it is also out of ‘radio sight’ for all of the spacecraft at Mars – either on the surface or in orbit. Between July 22nd to August 1st mission controllers will stop sending messages to the spacecraft at Mars, however the orbiters will continue their science observations and collecting data. The rovers on Mars on the other hand will not rove until after the radio silence period, but will still be able to carry on with some investigations.

   Click here to read more about how NASA prepares for the radio silence.



Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

It’s The Final Countdown or Cassini Spacecraft’s Grand Finale

   Two months from this posting, September 15th, the Cassini spacecraft will end its mission at the planet Saturn by diving into the planet’s atmosphere and self destruction.
   This animated graphic shows the hourly position of the Cassini spacecraft as it makes a distant flyby of two of Saturn’s smaller moons, Atlas and Janus on July 19th. (the moons and spacecraft have been greatly enlarged to make them visible)
20 Years Ago
   On October 14, 1997, NASA launched Cassini, its largest interplanetary spacecraft, on a nearly seven-year voyage to Saturn. The voyage to Saturn was a two-part mission that included an orbiter and the Huygens probe. The Cassini orbiter was designed to explore Saturn’s system as it looped over, under, and around the planet’s many moons and rings. The Huygens probe was designed and planned for a study of the atmosphere and surface of Saturn’s largest moon, Titan, as well as a parachute-assisted soft landing on the surface. On September 15th the exploration phase of the Cassini mission will end as the spacecraft runs out of fuel and descends into Saturn’s atmosphere. As frictional forces tear the spacecraft apart, instruments on-board will send back data about the planet’s atmosphere.
35 Years Ago
   Typically, little is known about what happens after or before the active part of a mission. We know that the follow-up to a mission is the data analysis, which usually takes many years. What is generally not acknowledged is the lead-up to the official mission, which begins with the launch. The Cassini Mission was first proposed in 1982, 15 years before the actual launch. Several years of planning and coordination between NASA and the European Space Agency followed. By the end of the 1980’s, the mission had been approved and was finally launched in 1997. Thirty-five years will have passed since the inception of the Cassini mission and the demise of the spacecraft when it enters Saturn’s atmosphere.

    Where is Cassini Now?
    Cassini grand finale fact sheet
    Cassini mission
    Cassini mission timeline poster
    Four Days at Saturn video
    Grand finale


Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

It’s Earthkam Week!

   Several times each year there is an opportunity to request pictures of the Earth to be taken by a camera on the ISS (International Space Station). This is one of those weeks, which actually started last Friday and ends this coming Saturday April 8th. Earthkam is open to educators (parents, teachers, scouts, etc.). On the mission web site there is an application form and there are lessons and activities as well as an archive of the many pictures taken by participants.
   This week I am working with students in several classes at Lee’s Summit High School, and a group of 5th grade students at Westview Elementary School tomorrow afternoon.

   Here are some of the pictures so far.


Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

Congress Downsizes the Solar System

   The US Congress today, in an effort to rectify the current sequestration budget cuts has made a dramatic announcement. In an effort to reduce the NASA budget, a resolution was passed today to downsize the solar system. According to an unnamed congressional staffer, House Republicans felt there has been “too much redundancy in the solar system” and that streamlining the 4.5 billion year old planetary system is long overdue. Such action would give NASA fewer places to go and this would allow the agency to carry out its space exploration goals within the funding profile that the House proposed earlier this summer.

   “Look, we have four terrestrial planets” said Congressman Rip U. Apart (R, OK), “and only one of them really works! So why not get rid of at least two of the others and clean up the neighborhood?” Most subcommittee members felt that while downsizing was definitely in the cards, eliminating both Mercury and Venus, or even Mars, was going too far. “We have too many international commitments to Mars.” said another politician. “So I think we should keep Mars and dump Venus and Mercury. It’s too hot to live on Venus, and liberal Democrats keep using it as an example of what climate change can do. So from a political and practical point of view, Venus has got to go.”

   Definitely at risk is the planet Mercury which lacks support because of its small size and poor visibility from Earth. “Who needs it?” asked Congressman Newt Onian (R, N.C.). “Have you ever seen it? I haven’t. So what good is it? We just don’t need useless planets. And speaking of useless planets, what about the asteroids? If you’ve seen one, you’ve seen them all. So I say we ought to get rid of the little boogers once and for all.”

   However, the downsizing recommendations do not stop with the terrestrial planets. The resolution also calls for a reduction in the number of gas giants which contain most of the planetary mass in the solar system. Most subcommittee members favor retaining Jupiter and Saturn, and eliminating Uranus and Neptune. “Jupiter employs the most molecules, and Saturn has those pretty little rings everyone likes.” said Rep. Con Mann (R, Fla.). “On the other hand, Uranus is a bore and its rings are dirty. And Neptune, for God’s sake, is just too far away.”

   The subcommittee was unanimous in its views towards Pluto which they deemed a moral misfit. “Now here’s a planet we can definitely do without.” continued Fornow. “Several years ago it was farthest from the sun (1979-1999), and now it’s not. It’s just too confusing. And now they tell me it’s really a Dwarf Planet. What the heck is going on here?”

   The resolution must now be presented to the entire House, where it is expected to pass easily since only a minority of Representatives have constituents on the affected planets. NASA Administrators have vowed to resist any further reductions to the solar system, saying that “NASA has expended considerable effort to make solar system exploration cheaper, faster, and better. Much of this work would be wasted if the solar system were downsized.”

   Critics say, however, that reducing the number of planets will not produce the expected savings to taxpayers. Textbooks, they note, would have to be revised to reflect the new arrangement, and facilities would need to be constructed to remove the planets themselves.

   April Fools!!


Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.

ISS This Morning

   This morning I braved the chilly temperature and caught the International Space Station as it orbited a little to the north over my space on the surface.

         A great way to start the end of the year!

   This graphic is a screenshot from my cellphone showing the display from ISS Detector, an extremely useful APP for Android and IOS and tablets like my Kindle Fire.

   The track across the sky lasted about 7 minutes. It started in the west and then followed a path between the two ‘Dippers’ passing the Pointer Stars in the Big Dipper on the way toward Polaris, the North Star.

   Camera Settings: 18 mm; 3.5 sec. F5.6; ISO 1600


Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.