TaurusSteve said:Summary:: Light Years.
If something happened 350 million years ago in space, are we just seeing it/ receiving the light now?
Ok, but I mean much further away. Say Andromeda.PeroK said:Not if it happened 5 light years away.
TaurusSteve said:Ok, but I mean much further away. Say Andromeda.
Ok the figure is irrelevant lol. We would see the target as it was all those years ago?PeroK said:Why 350 million years ago? Why not 2 million years ago (or thereabouts)?
TaurusSteve said:Ok the figure is irrelevant lol. We would see the target as it was all those years ago?
Unless it was 350MLY away, the light would have gone past us ages ago. We have missed it! Someone may have spotted it and written down the event - but only within the past few centuries, for most notable events.TaurusSteve said:Summary:: Light Years.
If something happened 350 million years ago in space, are we just seeing it/ receiving the light now?
This is what I meant! These mindblowing facts!PeroK said:If something is 2 million light years away - let's say a supernova - then it takes, by definition, 2 million years for the light to reach us.
For example, Betelgeuse is about 700 light years away and there is speculation that it is about to go supernova. But, if we see it going supernova this year, then it actually happened about 700 years ago.
This is just an extension of the fact that a light signal from the Moon takes over a second to reach Earth - so we are seeing the Moon as it was one second ago. Light from the Sun takes 8 minutes; light from the Pole star about 400 years etc.
If you go far enough then the spatial expansion of the universe becomes an additional factor, which complicates the calculations.
This time frame is significant because it represents a significant portion of the history of the universe. It allows us to study and understand the evolution of celestial bodies and the formation of galaxies.
Scientists use various methods such as studying light emissions, analyzing cosmic microwave background radiation, and observing the movement of celestial bodies to gather information about events that occurred in space millions of years ago.
Yes, we can observe events that happened in space millions of years ago through the use of powerful telescopes and other advanced technology. However, the further back in time we look, the more difficult it becomes to gather accurate information.
The events that occurred in space millions of years ago have shaped the universe as we know it today. They have influenced the formation of our solar system, the development of life on Earth, and continue to impact our understanding of the universe.
Yes, it is possible for events in space to have a direct impact on Earth. For example, a large asteroid or comet colliding with Earth could have catastrophic consequences. However, the likelihood of such an event occurring is very low.