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roamer65

(37,853 posts)

56. A comet would be visible for months.

Reply to PoindexterOglethorpe (Reply #13)

Fri Mar 29, 2019, 08:55 PM

Mar 2019

An asteroid would be much harder to see. It would have definitely been visible upon entry into the atmosphere.

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Paleontologist may have discovered a record of the most significant event in the history of life on [View all] G_j Mar 2019 OP

wow shanny Mar 2019 #1

and how! jpak Mar 2019 #7

This message was self-deleted by its author Rainbow Droid Mar 2019 #2

Everything does seem rather perfect. jeffreyi Mar 2019 #6

What does the Commandant say? TheBlackAdder Mar 2019 #19

Sooooo...there MIIIIIGHT just be dinosaurs on Europa? A HERETIC I AM Mar 2019 #3

There are dinosaurs everywhere on Earth (birds). lagomorph777 Mar 2019 #35

This kind of stuff fascinates me gratuitous Mar 2019 #4

So maybe they can remane it the "de Lancie Machine" ???? /nt sdfernando Mar 2019 #21

Bad vacation keithbvadu2 Mar 2019 #5

Fascinating! Thanks! nt tblue37 Mar 2019 #8

As Mr. Spock would say, "Fascinating." nt BlueFlorida Mar 2019 #9

A fascinating read Submariner Mar 2019 #10

Enjoyed reading this. mia Mar 2019 #11

But her emails... Takket Mar 2019 #12

I thought that the incoming asteroid would have been visible for a much longer PoindexterOglethorpe Mar 2019 #13

If an asteroid is orbiting in the same direction around the sun as the earth does.... Brother Buzz Mar 2019 #30

I'm attempting to write a s-f novel PoindexterOglethorpe Mar 2019 #42

they could potentially see it for months or years before impact, but it would just look like a star cbdo2007 Mar 2019 #45

I'm presuming intelligent, PoindexterOglethorpe Mar 2019 #46

Asteroids don't produce light on their own, until they enter our atmosphere.... Brother Buzz Mar 2019 #47

Asteroid spotting goes on all the time. PoindexterOglethorpe Mar 2019 #49

Unless I hear otherwise, I'm assuming dinosaurs didn't have telescopes.... Brother Buzz Mar 2019 #51

LOL! PoindexterOglethorpe Mar 2019 #60

I can believe the Hubble Space Telescope, without atmospheric distortion can Brother Buzz Mar 2019 #61

According to My Son the Astronomer PoindexterOglethorpe Mar 2019 #64

It's common knowledge dinosaurs could see in the infrared spectrum Brother Buzz Mar 2019 #76

It's science fiction...make it a comet. roamer65 Mar 2019 #67

A comet would be visible for months. roamer65 Mar 2019 #56

That was a fascinating article! MineralMan Mar 2019 #14

kick for later. miyazaki Mar 2019 #15

Very long, but worth it. sinkingfeeling Mar 2019 #16

+1 Read to the end. lagomorph777 Mar 2019 #36

Interesting Stargazer09 Mar 2019 #17

I love the Solar System Panspermia angle, but... lagomorph777 Mar 2019 #18

That was my first thought too catchnrelease Mar 2019 #22

Living microbes have been found in salt crystals Brawndo Mar 2019 #28

My first thought was that the heat would have sterilized any material that was ejected into space, Nitram Mar 2019 #37

That is heavy! I'm going to go read the whole thing. n/t Greybnk48 Mar 2019 #20

What a great article! DirtEdonE Mar 2019 #23

Wouldn't The Events Described DallasNE Mar 2019 #24

Many bodies MFM008 Mar 2019 #33

My Premise Was Based DallasNE Mar 2019 #41

The pressure of layers deposited above would have compacted the ash into a very thin layer over Nitram Mar 2019 #38

Thanks for posting Botany Mar 2019 #25

Freaking wow! malaise Mar 2019 #26

K&R!!!!!!!!!!!!!!!!!!!!! burrowowl Mar 2019 #27

Ummm...then again, maybe not.... capechacon Mar 2019 #29

I agree with key points that you made. Blue_true Mar 2019 #50

Welcome to DU! Delphinus Mar 2019 #72

Awesome. Thanks so much for sharing!!! Auggie Mar 2019 #31

Amazing bluescribbler Mar 2019 #32

Intriguing article. I hope this turns out to be an authentic find. Nitram Mar 2019 #34

Fascinating. Great article..thanks for posting. mountain grammy Mar 2019 #39

Vivid description mcar Mar 2019 #40

No cell phone video? California_Republic Mar 2019 #43

I read the whole article. Hugely fascinating. n/t SpankMe Mar 2019 #44

Wow...I believe he found a fossilized record of the KT event itself. roamer65 Mar 2019 #48

K&R stonecutter357 Mar 2019 #52

Fascinating! Cracklin Charlie Mar 2019 #53

Excellent article. Cattledog Mar 2019 #54

AOC actually zentrum Mar 2019 #55

If this were to happen today BigmanPigman Mar 2019 #57

Nuclear weapons in space would be a violation of the Outer Space Treaty. roamer65 Mar 2019 #58

Thanks...I see how that would be a problem. BigmanPigman Mar 2019 #59

It's difficult to move such a big thing krispos42 Mar 2019 #63

I'd be more worried about a Carrington event. roamer65 Mar 2019 #68

Wow. Thank you for posting. My main degree is in electrical engineering, but my hobby... CaptainTruth Mar 2019 #62

...And the cockroaches partied like it was 1999. MrScorpio Mar 2019 #65

Very interesting read. lunatica Mar 2019 #66

Take this with a grain of salt. cab67 Mar 2019 #69

Pics from NYT: dalton99a Mar 2019 #70

Great photos G_j Mar 2019 #79

The lucky creatures were the ones that died on impact. What a horrible thing to happen. Honeycombe8 Mar 2019 #71

A good Saturday morning read. Thanks for sharing. nt Hotler Mar 2019 #73

I was struck by how snobbish the academic community is. PatrickforO Mar 2019 #74

The person who provided that quote, Jack Horner, is a prominent paleontologist generalbetrayus Mar 2019 #78

Cool! chwaliszewski Mar 2019 #75

As a vertebrate paleontologist (although not a dinosaur paleontologist), generalbetrayus Mar 2019 #77