When you look up, how far back in time do you see?

Press/Media: Article/Feature

Description

Our senses are stuck in the past. There’s a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past.

We are seeing into the past too.

While sound travels about a kilometre every three seconds, light travels 300,000 kilometres every second. When we see a flash of lighting three kilometres away, we are seeing something that happened a hundredth of a millisecond ago. That’s not exactly the distant past.

But as we look further afield, we can peer further back. We can see seconds, minutes, hours and years into the past with our own eyes. Looking through a telescope, we can look even further into the past.

Period27 Dec 2018 → 19 Feb 2019

Media contributions

2

Media contributions

  • TitleRadio Adelaide Interview on looking back in time
    Degree of recognitionLocal
    Media name/outletRadio Adelaide
    Media typeRadio
    Duration/Length/Size8 mins
    CountryAustralia
    Date19/02/19
    Producer/AuthorZoe Kounadis and Tom MAnn
    PersonsMichael Brown
  • TitleBut as we look further afield, we can peer further back. We can see seconds, minutes, hours and years into the past with our own eyes. Looking through a telescope, we can look even further into the past.
    Degree of recognitionInternational
    Media name/outletThe Conversation
    Media typeWeb
    Duration/Length/SizeRoughly 1000 words
    CountryAustralia
    Date27/12/18
    Producer/AuthorMichael Brown
    URLhttps://theconversation.com/when-you-look-up-how-far-back-in-time-do-you-see-101176
    PersonsMichael Brown

Keywords

  • Astronomy
  • space
  • time