On April 29, 1999, NASA Earth Observatory (EO) started delivering science stories and imagery to the public through the Internet. So much has changed in those 20 years… In 1999, all EO readers came to us through a computer, mostly desktops. One third of them were connecting via dial-up modem. Today, about 40 percent of our audience arrives to the website via mobile phones and tablets on public wifi and cellular networks. The technology of science and the Internet has changed in a generation, and our site has e ...Continue Reading

On April 29, 1999, NASA Earth Observatory (EO) started delivering science stories and imagery to the public through the Internet. So much has changed in those 20 years… In 1999, all EO readers came to us through a computer, mostly desktops. One third of them were connecting via dial-up modem. Today, about 40 percent of our audience arrives to the website via mobile phones and tablets on public wifi and cellular networks. The technology of science and the Internet has changed in a generation, and our site has e ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #19-17 2019 April 28 at 8:21 p.m. MDT (2019 April 29 0221 UTC) **** SPACE WEATHER OUTLOOK **** Summary For April 22-28 No space weather storms were observed during the summary period. Outlook For April 29-May 5 No space weather storms are expected during the outlook period. Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, t ...Continue Reading

:Product: Solar Region Summary :Issued: 2019 Apr 29 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 119 Issued at 0030Z on 29 Apr 2019 Report compiled from data received at SWO on 28 Apr I. Regions with Sunspots. Locations Valid at 28/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 28/2400Z Apr Nmbr Location Lo None ...Continue Reading

:Product: Solar Region Summary :Issued: 2019 Apr 28 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 118 Issued at 0030Z on 28 Apr 2019 Report compiled from data received at SWO on 27 Apr I. Regions with Sunspots. Locations Valid at 27/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 27/2400Z Apr Nmbr Location Lo None ...Continue Reading

:Product: Solar Region Summary :Issued: 2019 Apr 27 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 117 Issued at 0030Z on 27 Apr 2019 Report compiled from data received at SWO on 26 Apr I. Regions with Sunspots. Locations Valid at 26/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 26/2400Z Apr Nmbr Location Lo None ...Continue Reading

:Product: Solar Region Summary :Issued: 2019 Apr 26 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 116 Issued at 0030Z on 26 Apr 2019 Report compiled from data received at SWO on 25 Apr I. Regions with Sunspots. Locations Valid at 25/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 25/2400Z Apr Nmbr Location Lo None ...Continue Reading

The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated event, 2 new images) -- TROPICAL CYCLONES IN THE SOUTHWEST INDIAN OCEAN Most tropical cyclone activity in this basin tends to occur between late October and May. * Kenneth Nearing Landfall in Mozambique (Image from Apr 25, 2019; Posted Apr 25, 2019) https://earthobservatory.nasa.gov/images/144963/kenneth-nearing-landfall-in-mozambique/?src=nha * Mozam ...Continue Reading

:Product: Solar Region Summary :Issued: 2019 Apr 25 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 115 Issued at 0030Z on 25 Apr 2019 Report compiled from data received at SWO on 24 Apr I. Regions with Sunspots. Locations Valid at 24/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 24/2400Z Apr Nmbr Location Lo None ...Continue Reading

Space Weather News for April 24, 2019 http://spaceweather.com https://www.spaceweatheralerts.com COSMIC RAYS NEARING SPACE AGE PEAK: Cosmic rays penetrating Earth's atmosphere are intensifying, and nearing a Space Age record for dose rates. This is a result of Solar Minimum, a deep lull in solar activity that allows deep-space radiation to enter the solar system. Visit today's edition of Spaceweather.com to see the data and find out when the record might be broken. Sign up for Space Weather ...Continue Reading