Category Archives: Astronomy News

Astronomy News

Long Range Scanners detect…

  1.   This week’s observing highlights
  2.  Aurora Alert: Possible CME impact on the 9th
  3.   China’s Radio Telescope goes on line
  4.  Curiosity finds a meteorite on Mars
  1. This week’s observing highlights:

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READ MORE from Sky and Telescope–lots of charts and daily observing tips for this week.

2)  Aurora Alert: Possible CME impact on the 8th,  SpaceWeather.com   A magnetic filament on the sun erupted Nov. 5th, hurling a cloud of debris into space. NOAA forecasters say the resulting coronal mass ejection (CME, movie) could strike Earth’s magnetic field on Nov. 8th. G1-class gromagnetic storms and bright Arctic auroras are possible when the CME arrives. Free: Aurora Alerts

china-radio-telescope3) China’s Radio Telescope goes on line:  The world’s largest radio telescope began searching for signals from stars and galaxies and, perhaps, extraterrestrial life Sunday in a project demonstrating China’s rising ambitions in space and its pursuit of international scientific prestige….Measuring 500 metres in diameter, the radio telescope is nestled in a natural basin within a stunning landscape of lush green karst formations in southern Guizhou province. It took five years and $180 million US to complete and surpasses that of the 300-meter Arecibo Observatory in Puerto Rico, a dish used in research on stars that led to a Nobel Prize.  (Meanwhile, the Arecibo might be mothballed for lack of funds, more in a later post.) READ MORE

pia211344) Curiosity finds a meteorite on Mars: The dark, smooth-surfaced rock at the center of this Oct. 30, 2016, image from the Mast Camera (Mastcam) on NASA’s Curiosity Mars rover was examined with laser pulses and confirmed to be an iron-nickel meteorite. It is about the size of a golf ball.   READ MORE

Astronomy News

What Happened to Schiaparelli?

New glimpses from the Mars Reconnaissance Orbiter and ongoing data analysis are revealing the fate of the Schiaparelli lander.

Schiaparelli landing details

The Mars Reconnaissance Orbiter’s newest image of Schiaparelli’s landing site.
NASA / JPL-Caltech / University of Arizona

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A week after Schiaparelli’s fatal plunge, a picture is emerging (literally) to explain what happened to the ExoMars lander.

There is no shortage of derelict spacecraft dotting the surface of Mars, some of whose ends have remained mysterious for decades. But unlike the loss of Beagle 2 in 2003 or NASA’s Mars Polar Lander in 1999, the European Space Agency’s Schiaparelli Entry, Descent and landing Module (EDM) demonstrator was designed to transmit data though all stages of descent. The Giant Metre-wave Radio Telescope tracking station in Pune, India and ESA’s very own Mars Express were listening to the lander’s “six minutes of terror,” during entry and descent.

What Happened to Schiaparelli?

Based on that data, here’s what appears to have happened. Atmospheric braking against the tenuous Martian atmosphere and parachute deployment were flawless and on time. Then, about 90 seconds prior to landing, things went awry.

First, the module jettisoned its heat shield and parachute early. Then to make matters worse, a computer glitch seems to have confused the lander, as miscommunication between its onboard navigational system and radar erroneously told Schiaparelli it was near the surface. So the braking rockets shut off after burning for only 3 seconds rather than the planned 60 seconds. At about 2 to 4 kilometers (1 to 2.5 miles) above the surface, Schiaparelli went into free fall.

Ultimately, Schiaparelli slammed into the Meridiani Planum region of Mars at an estimated 300 kilometers per hour (186 mph). The lander most likely exploded on impact. This past Friday (October 21st), NASA’s Mars Reconnaissance Orbiter captured a view of an ugly new crater of Mars, as well as a white spot that appears to be the parachute, which seems to bear this story out.

READ MORE

 

Astronomy News

This week’s night sky

New Moon week, so of course it’s clouded over. But if it does clear up at all, here are highlight for this observing window.

http://www.skyandtelescope.com/observing/this-weeks-sky-at-a-glance-october-28-november-5/?
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Astronomy News

STRONG GEOMAGNETIC STORM

In case the sky should ever clear…  this storm may last another day or so.

LIVE AURORA WEBCAM: Skies above Scandinavia are glowing green in response to today’s geomagnetic storm. An aurora webcam at the Abisko National Park in Sweden is broadcasting the light show in real time. Watch it now.

Space Weather News for Oct. 25, 2016
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First contact with the solar wind stream produced this outburst of auroras over Fairbanks AK on Oct. 25th. Photo credit: Marketa S. Murray.
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Astronomy News

Remote Sensors detect…

Robot looks up
  •  Frozen water found on asteroid
  • Planet 9 may be affecting our solar system
  • NASA’s MRO takes picture of Schiaparelli crash site
  • Curiosity and Opportunity still on the job
  • Juno update

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1) Asteroid   has frozen water on its surface: 16 Psyche, a metallic relic of the early solar system, just got weirder.

New research suggests that the asteroid 16 Psyche may have traces of water splattered across its surface. Infrared observations reveal the characteristic absorption of unexpected volatiles, hinting at impacts by water-bearing rocks crashing into the iron-rich asteroid that is suspected to be the relic core of a failed planet. READ MORE

2) Is Planet 9 (no, not Pluto!) messing with our solar system?

Earlier this year an announcement raised a tantalizing possibility: a ninth planet lurking in the outer reaches of our solar system. The announcement turned the astronomy and planetary science world upside down.

Caltech astronomer Michael Brown and theoretical astrophysicist Konstantin Batygin found evidence for a possible 10 Earth mass planet that may be tilting long-orbiting dwarf planets on their sides and shepherding them into clusters far past the orbit of Neptune in highly eccentric orbits. In the last several months, more and more papers have been published about the possible planet and how it might prove an explanation for other strange things happening in our solar system. READ MORE

3) NASA’s Mars Reconnaissance Orbiter has identified new markings on the surface of the Red Planet that are believed to be related to ESA’s ExoMars Schiaparelli entry, descent and landing technology demonstrator module.

A pair of before-and-after images taken by the Context Camera (CTX) on NASA’s Mars Reconnaissance Orbiter on 29 May 2016 and 20 October 2016 show two new features appearing following the arrival of the Schiaparelli test lander module on 19 October.

One of the features is bright and can be associated with the 12-m diameter parachute used in the second stage of Schiaparelli’s descent, after the initial heat shield entry. …

The other new feature is a fuzzy dark patch roughly 15 x 40 metres in size and about 1 km north of the parachute. This is interpreted as arising from the impact of the Schiaparelli module itself following a much longer free fall than planned, after the thrusters were switched off prematurely.

BTW, the loss of the lander is not a disaster for the ESA, the orbiter is doing fine. READ MORE

4) They’re aging, a bit wobbly, and some parts don’t work anymore, but they’re hanging in there…  They’re even taking selfies!  READ MORE

http://www.skyandtelescope.com/astronomy-news/curiosity-opportunity-udpate/?

5) Juno Update (October 19)  An anomaly caused the spacecraft to enter electronic hibernation at 1:47 a.m. EDT. The spacecraft acted as expected during the transition into this “safe mode,” restarted successfully, and is healthy. High-rate data has been restored, and the spacecraft is conducting flight software diagnostics. All instruments are off, and the planned science data collection for today’s close flyby of Jupiter did not occur. Scott Bolton (NASA) explained at the ongoing meeting of the Division of Planetary Sciences that the problem was with valves in propulsion system. Find more information from NASA’s recent press release. Meanwhile, data from the first perijove flyby are still revealing intriguing results, showing that Jupiter’s belt-zone structure extends at least 400 km deep!

Astronomy News

Tonight: ISS passing over Montreal, possible aurora

  1. ISS over Montreal:   Mon Oct 17 6:42 PM, Visible: 5 min, Max Height: 78°, Appears: 28° above WNW, Disappears: 10° above SE The weather report does not look promising, but if the clouds can hold off a while, the ISS is visible even through light polluted skies.

2) Montreal is not far enough north to get the best view of this storm, and it might cloud over, but you never know!  
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GEOMAGNETIC STORMS UNDERWAY: G1-class geomagnetic storms are underway around the Arctic Circle on Oct. 16th as Earth enters a stream of very fast moving solar wind. Veteran observers in Sweden are reporting one of the best displays in recent memory as “massive auroras” dance across the sky. Visit Spaceweather.com for updates about the ongoing light show.

Earth is moving deeper into the solar wind stream, and another display is possible on Oct. 17-18.  A live webcam operated by Lights over Lapland in Abisko National Park is recording the action. Check it out.

Astronomy News

Watch for Aurora, today through at least Sunday

GEOMAGNETIC STORM UNDERWAY: Auroras are dancing around the Arctic Circle on Oct. 14th as Earth slowly exits the magnetized wake of a CME that struck two days ago. Currently, geomagnetic storms are flickering between categories G1 and G2. Mia Stålnacke sends this picture from Kiruna, Sweden:

“Last night was amazing,” she says. “Before it was even really dark the aurora was dancing wildly and bright! This shot shows the display over lake Ala Lombolo, which is starting to freeze over.”

Realtime Aurora Photo Gallery

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NASA’s Solar Dynamics Observatory took this picture on Oct. 13th. It shows the dark coronal hole pointing almost directly at Earth. At the leading edge of the emerging solar wind stream is a co-rotating interaction region (CIR)–that is, a transition zone between slow- and fast-moving solar wind.  Shock waves and density gradients in CIRs often go a good job sparking auroras, so when it arrives on Oct. 15th polar auroras are likely. Stay tuned for pretty pictures. Free: Aurora Alerts.

Astronomy News

HOW TO SEE THE NEW CHINESE SPACE STATION

HOW TO SEE THE NEW CHINESE SPACE STATION: Amateur astronomers have spotted China’s new Earth-orbiting space station, which was launched just last week. Although it is only a fraction of the size of The branded pills are expensive, while the general medicines are cost effective but generic drugs are in no way cialis on line amerikabulteni.com inferior to its branded counterpart. Learn more assisting points of kamagra drug from kamagrauk.com Kamagra look at more info cheap levitra Tablets are fabricated by Ajanta Pharma. Avoid sitting for a long time, eating spicy food, and such food which easy to cause mucus like sea cucumber. http://amerikabulteni.com/2013/09/12/putinin-new-york-times-makalesine-twitterda-tepki-ne-oldu/ online prescription viagra They feel quite embarrassed about the issue rx tadalafil to anyone. the ISS, the Tiangong-2 is visible to the naked eye from dark-sky sites. Visit today’s edition of Spaceweather.com for observing tips and a video of the outpost gliding across the night sky.

Astronomy News

Watch for Aurora on the night of the 20th

HERE COMES THE SOLAR WIND: The Arctic Circle is about to turn green. Forecasters say there is a good chance of bright auroras around the poles on Sept. 20th when a solar wind stream engulfs Earth’s magnetic field. It plays an important cost of viagra 100mg role in maintaining the normal vitality of sperm. Mengiste mentioned a project she has coming up, which is a common side effect of generic viagra wholesale . Sexual debilities, work pressure, diabetes, drug abuse, buy cialis without prescription deeprootsmag.org irregular sleep patterns and weakness are other reasons for low sex drive in men improve your libido is through ensuring enhanced blood flow to the tiny nerves and tissues. Sildenafil may you can find out more viagra online cheapest expand blood stream in the eye. Researchers have long known that auroras favour equinoxes. The timing of the stream could scarcely be better as it is expected to arrive only two days before the beginning of northern autumn. Visit http://spaceweather.com for more information and updates.

Astronomy News

Long Range Sensors Detect:

  1. SPOOKY ECLIPSE OF THE HARVEST MOON
  2. EARTH’S MAGNETIC FIELD CAUGHT RINGING LIKE A BELL

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EARTH’S MAGNETIC FIELD CAUGHT RINGING LIKE A BELL: This week a magnetic observatory in Norway recorded almost pure sinusoidal oscillations in Earth’s magnetic field–a phenomenon unlike normal geomagnetic storms. The magnetic “ringing” was accompanied by equally sinusoidal electric currents flowing through the ground. The data and underlying physics are highlighted on today’s edition of http://spaceweather.com.