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NASA Hits Halloween Asteroid With Radar

Radar-generated images of the near-Earth object 2015 TB145 made on Oct. 31, 2015 from 5:55 a.m. PDT (8:55 a.m. EDT) to 6:08 a.m. PDT (9:08 a.m. EDT). (NASA/JPL-CALTECH/GSSR/NRAO/AUI/NSF)

Radar-generated images of the near-Earth object 2015 TB145 made on Oct. 31, 2015 from 8:55 a.m. EDT 9:08 a.m. EDT. (NASA/JPL-CALTECH/GSSR/NRAO/AUI/NSF)

On the afternoon of Oct. 31, 2015, Earth was visited by something much creepier than the typical Halloween trick-or-treater: a dark 2,000-foot (600-meter) -wide asteroid that sped silently (because space) by, approaching at its closest only about 1.3 times the distance to the Moon.

Designated 2015 TB145, this particular near-Earth object had only just been discovered a couple of weeks earlier. And while it posed no danger of impact, its considerable size and high velocity made the close pass a topic of interest for laypeople and scientists alike. By bouncing radar waves off its surface NASA researchers were able to generate an image of 2015 TB145, capturing details that would have been otherwise impossible due to its high velocity and incredibly dark coloration.

Read my full story on Discovery News here.


This Asteroid Will Come Eerily Close to Earth on Halloween

Concept image of a large asteroid passing by Earth and the Moon

A recently-discovered asteroid named 2015 TB145 will come within 1.3 lunar distances of Earth on Oct. 31, 2015. (Illustration by J. Major.)

Yes, it’s true: a rather not-so-tiny near-Earth asteroid SKULL-SHAPED ZOMBIE COMET (see below) 2015 TB145 will make a relatively close pass by our dear planet Earth on October 31, aka Halloween — the day when certain beliefs profess that the veil separating the worlds of the living and the dead is at its thinnest, allowing spiritual and even physical interaction to occur between both.

Of course there is no scientific evidence that the latter is at all true but it makes for good scary stories around the light of a campfire. And as the first-world campfires of today are the stark lights of computer monitors and smartphone screens, some are trying to weave scary stories about the passing of this asteroid as well. Should you be afraid? Certainly not. (But there is a cautionary tale to be told.)

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A Spooky Space Ghost for Halloween!

A portion of vdB 141, aka the “Ghost Nebula”

Looking like something out of a Tim Burton movie, the eerie shapes seen above are part of a cloud of gas and dust located 1,200 light-years away in the constellation Cepheus. First identified in 1966, the human-like figures with “arms” raised give the nebula its spooky nickname: the “Ghost Nebula”.

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Saturn’s Spooky Sounds

Here’s a bit of space spookiness just in time for the Halloween season! It’s a recording of the intense radio emissions coming from Saturn, as detected by the Cassini spacecraft’s radio and plasma wave science instrument on November 22, 2003.

Not exactly a direct audio recording (since Cassini is in space where there’s no “sound” like we hear) these eerie sounds are tonal interpretations of Saturn’s fluctuating radio emissions, which are closely related to the planet’s auroral activity. The frequencies have been shifted downwards by a factor of 44 to make them audible to our ears.

Time on this recording has been compressed, so that 73 seconds corresponds to 27 minutes.

Sounds eerily like the effects from an old “B” sci-fi movie! All we need now are the bug-eyed alien zombies…

Read more about this recording here.

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