Program 121 of VOA Radiogram

Before RSID: <<2015-07-25T14:46Z MFSK-32 @ 1504>>





Welcome to VOA Radiogram from the Voice of America.

I'm Kim Andrew Elliott in Washington.

Here is the lineup for today's program, all in MFSK32 except
where noted:

1:29 Program preview (now)
2:41 Philae comet lander may have shifted position*
6:07 Replicating earth's magnetic field*
13:08 Weak solar activity puzzles scientists*
19:04 Olivia 32-2000: Puddles as origin of life
24:02 MFSK32: Closing announcements*
28:29 Olivia 32-2000: Transmission schedule


Please send reception reports to radiogram@voanews.com.

And visit voaradiogram.net.

Twitter: @VOARadiogram







Scientists Say Comet Lander May Have Shifted Position

Associated Press via voanews.com
July 20, 2015

BERLIN - Scientists say the Philae spacecraft that landed on a
comet last year may have shifted its position, making it harder
to communicate with the probe.

The European Space Agency says it hasn't received data from the
lander since July 9. Philae's project manager, Stephan Ulamec,
said Monday the pattern of sunlight on the lander's solar panels
appears to have changed, possibly due to a slight shift in
position triggered by gas coming out of the comet.

One of Philae's two transmission units also appears to be faulty.

Scientists plan to send further commands to the lander and hope
it responds again, as has happened before.

The mission will now focus on the spacecraft Rosetta, which is
following comet 67P/Churyumov-Gerasimenko that Philae is on as it
goes around the sun.

http://www.voanews.com/content/study-life-on-earth-could-have-begun-on-dry-land/2870488.html





Image: An artist's rendering of the Philae probe on Comet
67p/Churyumov-Gerasimenko.


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did not hear
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Saitama, Japan

No signal
UT in the Netherlands

K2SDR in NJ

PY4VE in Santa Rita do Sapucaí, Brasil
5745 kHz at 0930 UTC on Jul 25

did not hear
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did not hear
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UT in the Netherlands
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This is VOA Radiogram from the Voice of America.

Please send reception reports to radiogram@voanews.com.


VOA NEWS

Weak Solar Activity Puzzles Scientists

George Putic
July 17, 2015

At almost regular intervals, our sun displays phenomena benignly
called sunspots. Actually, they are violent storms.

Space scientists closely observe this activity, because it may
have adverse effects on communications, navigation and even power
grids. But the diminishing intensity of the last two solar
cycles leaves them puzzled.

When gigantic electromagnetic storms occur on the sun, we see
them eight minutes later, which is how long it takes the light to
reach Earth.

It takes the first charged particles ejected by the storms 20 to
30 minutes to arrive. They are dangerous to humans, so if the
storm is intense, astronauts aboard the International Space
Station are advised to move into specially protected areas.

After a day or two comes the biggest part of the storm, the
coronal mass ejection.

"That is billions of tons of solar material that's blown away
from the sun," said Alex Young of NASA's Heliophysics Science
Division. "It's traveling millions of kilometers an hour, but
that is relatively slow."

Several government agencies, as well as the U.S. Air Force,
observe the space weather, as they call it, 24 hours a day. NASA
does it in order to protect its astronauts and the sensitive
electronics of its spacecraft, but also because many questions
about our star still need to be answered. One of them is why the
sunspots follow a roughly 11-year cycle, from low to high
activity.

"Also, sometimes the intensity is higher and sometimes it is
lower," Young said. "The current solar cycle that we are in is
much lower than the previous one."

Another big question: Why is the sun's atmosphere hotter than its
surface?

"Particles are much farther and farther apart," Young said, "but
the temperature — that is, how fast these particles are moving —
increases very quickly, going from tens of thousands of degrees
up to millions of degrees."

Several satellites are constantly observing the sun, as well as
the environment between the sun and Earth, sending pictures and
other data. Young said we have been looking at the sun in
incredible detail for only 30 to 40 years, and because our star
is about 4 billion years old, that is only a tiny fraction of its
long life.

http://www.voanews.com/content/weak-solar-activity-puzzles-scientists/2867474.html





Image: Screen capture from the video verson of this VOA News
story ...


Sending Pic:233x135C;
This image could not be decoded.
Saitama, Japan

No signal
UT in Tthe Netherlands

K2SDR in NJ

PY4VE in Santa Rita do Sapucaí, Brasil
5745 kHz at 0930 UTC on Jul 25

did not hear
17870 kHz at 1600 UTC on Jul 25

did not hear
5745 kHz at 0230 UTC on Jul 26

This image could not be decoded.
Saitama, Japan

No signal
UT in the Netherlands

K2SDR in NJ

PY4VE in Santa Rita do Sapucaí, Brasil
5745 kHz at 0930 UTC on Jul 25

did not hear
17870 kHz at 1600 UTC on Jul 25

did not hear
5745 kHz at 0230 UTC on Jul 26


UT in Tthe Netherlands
15670 kHz at 1930 UTC on Jul 26



VOA Radiogram transmission schedule
(days/times UTC):
Sat 0930-1000 5745 kHz
Sat 1600-1630 17870 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via North Carolina


(in Saitama, JPN and via UT in NED, K2SDR in NJ and PY4VE in BRA)

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