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The universe shows its age

Article Abstract:

One of the most nagging problems in astronomy appears to be abating. For years, measured expansion rates for the universe were so fast that they implied an age billions of years younger than the oldest stars. Data from the Hubble Space Telescope is helping scientists better determine star distances.

Author: Watson, Andrew
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1998
Measurement, Stars, Expanding universe, Stellar age

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X-rays go where neutrons fear to tread

Article Abstract:

High energy x-ray scattering is revealing data on properties that have traditionally been examined with neutron beams. The high quality x-rays produced by third generation synchrotron sources are being used in studies of magnetism and disordered materials.

Author: Watson, Andrew
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1997
Innovations, Equipment and supplies, Molecular structure, Synchrotron, Synchrotrons

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