Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Advertisement

Nature
  • View all journals
  • Search
  • Log in
  • Content Explore content
  • About the journal
  • Publish with us
  • Sign up for alerts
  • RSS feed
  1. nature
  2. correspondence
  3. article
ERTS
Download PDF
Download PDF
  • Correspondence
  • Published: 14 December 1973

ERTS

  • R. W. NICHOLLS1 

Nature volume 246, page 437 (1973)Cite this article

  • 349 Accesses

  • Metrics details

Article PDF

Author information

Authors and Affiliations

  1. Professor of Physics, Director, Centre for Research in Experimental Space Science, York University, Toronto

    R. W. NICHOLLS

Authors
  1. R. W. NICHOLLS
    View author publications

    Search author on:PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

NICHOLLS, R. ERTS. Nature 246, 437 (1973). https://doi.org/10.1038/246437a0

Download citation

  • Issue date: 14 December 1973

  • DOI: https://doi.org/10.1038/246437a0

Share this article

Anyone you share the following link with will be able to read this content:

Sorry, a shareable link is not currently available for this article.

Provided by the Springer Nature SharedIt content-sharing initiative

Download PDF

Advertisement

Explore content

  • Research articles
  • News
  • Opinion
  • Research Analysis
  • Careers
  • Books & Culture
  • Podcasts
  • Videos
  • Current issue
  • Browse issues
  • Collections
  • Subjects
  • Follow us on Facebook
  • Follow us on Bluesky
  • Follow us on X
  • Sign up for alerts
  • RSS feed

About the journal

  • Journal Staff
  • About the Editors
  • Journal Information
  • Journal Metrics
  • Our publishing models
  • Editorial Values Statement
  • Editorial policies
  • Journalistic Principles
  • History of Nature
  • Awards
  • Contact
  • Send a news tip

Publish with us

  • For Authors
  • For Referees
  • Language editing services
  • Open access funding
  • Submit manuscript

Search

Advanced search

Quick links

  • Explore articles by subject
  • Find a job
  • Guide to authors
  • Editorial policies

Nature (Nature)

ISSN 1476-4687 (online)

ISSN 0028-0836 (print)

nature.com sitemap

About Nature Portfolio

  • About us
  • Press releases
  • Press office
  • Contact us

Discover content

  • Journals A-Z
  • Articles by subject
  • protocols.io
  • Nature Index

Publishing policies

  • Nature portfolio policies
  • Open access

Author & Researcher services

  • Reprints & permissions
  • Research data
  • Language editing
  • Scientific editing
  • Nature Masterclasses
  • Research Solutions

Libraries & institutions

  • Librarian service & tools
  • Librarian portal
  • Open research
  • Recommend to library

Advertising & partnerships

  • Advertising
  • Partnerships & Services
  • Media kits
  • Branded content

Professional development

  • Nature Awards
  • Nature Careers
  • Nature Conferences

Regional websites

  • Nature Africa
  • Nature China
  • Nature India
  • Nature Japan
  • Nature Middle East
  • Privacy Policy
  • Use of cookies
  • Legal notice
  • Accessibility statement
  • Terms & Conditions
  • Your US state privacy rights
Springer Nature

© 2026 Springer Nature Limited

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing