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5 votes
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Blue Origin - Blue Moon lunar lander
6 votes -
Rocket Lab launches three US military satellites
4 votes -
SpaceX’s unnerving silence on an explosive incident
12 votes -
The race to develop the moon
8 votes -
The space rock that hit the moon at 61,000 kilometers an hour
6 votes -
SpaceX cuts broadband-satellite altitude in half to prevent space debris
7 votes -
On verge of space history, Beresheet fails to land safely on Moon
8 votes -
I have a basic and possibly uninformed question about the event horizon of a black hole
It is my understanding that if you are looking at an object falling into a black hole from a remote viewpoint, then the object will appear to take “forever” to complete the fall into the black...
It is my understanding that if you are looking at an object falling into a black hole from a remote viewpoint, then the object will appear to take “forever” to complete the fall into the black hole. The object is effectively frozen in time at the black hole’s event horizon, from the remote viewer’s POV.
Is this the correct interpretation so far? If so, let’s remember that.
It is also my understanding that a black hole can increase in mass as it captures new objects. The mass does increase from an external viewpoint. Is this accurate?
If I understand known science on the above points, then the paradox I see here is that while the visual information is frozen in time from the external POV, the mass of the black hole does increase from the external POV. So is this where the Holographic Principle comes in? Or is there another explanation here, or am I off-base entirely?
Or is it just that the accretion disk gains mass and black holes never increase in mass from an external POV, after they are initially formed?
Is this known?
Please either attempt to answer my tortured question, or point me to material that might lead me ask a better question.
Thanks!
13 votes -
Even space isn’t safe from ads: Companies want to turn satellites into billboards
15 votes -
Frustrated pilots got Navy to stop dismissing UFO sightings
8 votes -
NASA's flagship James Webb Space Telescope, will run Javascript for instrumentation control using a defunct & proprietary interpreter with a list of errata last updated in 2003
12 votes -
Will we find extraterrestrial life on ice worlds? Why Europa is the place to go for alien life.
4 votes -
Astrophysical detection of the helium hydride ion HeH+
5 votes -
The logistics of the International Space Station
7 votes -
New video of Intelsat 29e satellite reveals dramatic “anomaly”
13 votes -
The most dangerous stuff in the universe - Strange stars explained
11 votes -
Scott Kelly spent a year in orbit. His body is not quite the same.
11 votes -
What a year in space did to Scott Kelly
6 votes -
SpaceX lands all three Falcon Heavy rocket boosters for the first time ever
28 votes -
Mars methane hunt comes up empty, flummoxing scientists
6 votes -
Israeli robotic moon landing fails in final descent
10 votes -
Black hole picture captured for first time in space ‘breakthrough’
63 votes -
How to understand the image of a black hole
7 votes -
Watch SpaceX’s powerful Falcon Heavy rocket fly its first commercial mission
8 votes -
SpaceX begins Starship hopper testing
7 votes -
With a second repeating radio burst, astronomers close in on an explanation
7 votes -
Boeing confirms delay of first Starliner crew capsule test flight to August
5 votes -
Something on Mars is producing gas usually made by living things on Earth
9 votes -
Chinese rocket company Linkspace successfully tests hovering a rocket
@linkspace_china: LinkSpace did a very successful test on rocket recycling on March 27, 2019. It will support us to open the next PLAN. Thank you Dr. @robert_zubrin for being here to witness this exciting milestone. Later, NewLine Baby(RLV-T5) will undergo higher flight tests in the future. https://t.co/9aIpLopstW
5 votes -
WFIRST faces funding crunch
4 votes -
The plan to make artificial meteor showers
3 votes -
Boycott Indian launchers? Industry reacts to India’s anti-satellite weapon test.
4 votes -
NASA studying ways to accelerate development of Space Launch System
5 votes -
India shot down a satellite, Modi says, shifting balance of power in Asia
9 votes -
Vice President Pence gives NASA five years to put Americans back on the Moon
14 votes -
Venus is not Earth's closest neighbour
17 votes -
Do black holes contain dark matter?
4 votes -
SpaceX goes all-in on steel Starship, scraps expensive carbon fiber Big Falcon Rocket tooling
3 votes -
SpaceX's Starship prototype vehicle may "hop" for the first time this week
15 votes -
US detects huge meteor explosion
8 votes -
Engineers still studying problem with InSight heat flow probe
6 votes -
Astronomers discover eighty-three supermassive black holes in the early universe
6 votes -
Dormant viruses activate during spaceflight
6 votes -
Beyond the big splash: What SpaceX success means for America
5 votes -
Russia’s passive-aggressive reaction to SpaceX may mask a deeper truth
18 votes -
Physicists analyze the rotational dynamics of galaxies and the influence of the mass of the photon
6 votes -
The marriage of SpaceX and NASA hasn’t been easy—but it’s been fruitful
10 votes -
Opportunity did not answer NASA’s final call, and it’s now lost to us
13 votes -
OneWeb set to launch first satellites in quest to provide global internet coverage from space
10 votes