Recent content by petermabey

  1. petermabey

    Is it possible to find new elements in the universe?

    Any new element would have to have an atomic number greater than 118, and although there may be an island of stability at about 120, such would be so scarce and short-lived that it is very unlikely that they could be detected astronomically.
  2. petermabey

    What do constellations look like from other stars?

    Those nearer to us would be the opposite side of their sky from those further away.
  3. petermabey

    What do constellations look like from other stars?

    Not so: Cassiopeia would not be recognisable as a constellation from Archid as the directions to the other stars would be all over the place.
  4. petermabey

    Question Had the Universe started to expand at time zero?

    I think time should be measured on a logarithmic scale, so that time zero is infinitely negative in the past
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