Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Space Discussion Thread

ArcticDude

Super Moderator
Staff member
Joined
Jun 22, 2016
Messages
2,477
Points
113
NASA and European Space Agency in mission to deflect asteroid to save world from future collisions

Two spacecraft will be used to knock an asteroid off course and then analyse its post-impact remains.




NASA and the European Space Agency (ESA) are teaming up for an ambitious mission to use a spacecraft to deflect an asteroid.

Researchers and engineers from the two agencies and beyond are meeting in Rome next week to discuss the idea, which they want to prove is a viable method of planetary defence.

The so-called Asteroid Impact Deflection Assessment (AIDA) would target the smaller body of the double Didymos asteroids orbiting between the Earth and Mars, with one spacecraft dedicated to knocking it off course and another to survey its remains once it crashes.

The DART (Double Asteroid Impact Test) craft is scheduled to collide with its target in September 2022, with the moment of impact to be recorded by an Italian-made miniature satellite along for the ride called LICIACube.


https://news.sky.com/story/nasa-and-european-space-agency-in-mission-to-deflect-asteroid-to-save-world-from-future-collisions >>
 



RedCowboy

Well-known member
Joined
Jul 10, 2015
Messages
8,226
Points
113
It needs to be perfected in case it's needed, not just tested and dismissed if failed.
 

ArcticDude

Super Moderator
Staff member
Joined
Jun 22, 2016
Messages
2,477
Points
113
China says it found something bizarre and unexpected on the moon

Yutu-2
made the discovery during its eighth lunar day on the moon as it zipped through an area riddled with small impact craters (a lunar day lasts 29.5 Earth days; this one was from late July into early August). A member of the rover’s team noticed a bizarre, colorful luster in one of the mission’s recent images, so the team directed the rover to study it more closely. The only real details China has released so far is that the material is “gel-like,” and that is exhibits an “unusual color.”


 

Ears and Eggs

Super Moderator
Staff member
Joined
Oct 1, 2007
Messages
2,480
Points
83
Interesting. Wonder if there is some way they can tell for sure if it is a rocky terrestrial planet and not an ice giant/mini Neptune type with just some water vapor in it's atmosphere.

Either way really promising to see a planet with an atmosphere in the habitable zone of a Red dwarf. Red dwarves tend to flare a lot and combined with the much closer orbit required to be in the habitable zone, planets can be exposed to extreme radiation levels.

It also must have some crazy weather patterns as it's quite likely it could be tidally locked with an orbit that close to it's host star.
 
Last edited:

ArcticDude

Super Moderator
Staff member
Joined
Jun 22, 2016
Messages
2,477
Points
113
Just a heads up guys!

A rare full moon will be appearing across the United States on Friday he 13th
The United States hasn’t had a Friday the 13th full moon since Oct. 13, 2000 — and the next won’t occur until Aug. 13, 2049


screenshot-nerdbot.com-2019.09.12-22_18_12.png
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
16,265
Points
113
I guess the date somehow makes this rare, but not to me. A Friday the 13th full moon is just the same as any other full moon. Since I am not superstitious in least, this is just another full moon in my opinion.
 

ArcticDude

Super Moderator
Staff member
Joined
Jun 22, 2016
Messages
2,477
Points
113
black-hole-star_1024.jpg

Astronomers Catch The Immediate Aftermath of a Black Hole Destroying a Star

For all our perception of supermassive black holes as gravitational vortices ravenously devouring stars, it doesn't actually happen that often. For instance, our galaxy's own black hole might only do it a handful of times every 100,000 years.

More at Science Alert >>
The Astrophysical Journal >>

 

Coonie

Active member
Joined
Jan 12, 2018
Messages
170
Points
28
So this dark matter and dark energy is interesting. Things not highly reactive to the electromagnetic spectrum. It opens up a whole new world of possibilities. Maybe new forms of energies that can change our daily lives the same way the electron has!
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
16,265
Points
113
I don't see how. These kinds of events are rare, and until recently, have been impossible to record. Gravitational waves are one of the most recent success stories of recording these kinds of events.
 

BowtieGuy

Well-known member
LPF Site Supporter
Joined
Oct 14, 2012
Messages
5,985
Points
113
Not sure if this has been posted yet, but I just saw this story regarding Elon Musk and his "Starlink" satellites, and the headaches that they are causing for astronomers.



 
Last edited:

Nutball

Active member
Joined
Feb 22, 2017
Messages
293
Points
28
What's the point of all of those satellites? Elon is getting on my nerves with the sum of what he has done. Some of it I like though, like those reusable rockets.
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
16,265
Points
113
We had reusable space shuttles in the 1980s. Problem was it took a $1 billion to get them ready to reuse. :LOL:
 

Nutball

Active member
Joined
Feb 22, 2017
Messages
293
Points
28
Yea, but the rocket boosters were not reused.

Seems like the guy has nothing better to do with his money than shoot his junk up into space: cars and satellites and such. Although his new truck belongs in space, but that might end up as another embarrassment :LOL:
 




Top