Astronomy Now Home
Home Magazine Resources Store

On Sale Now!



The October 2014 issue of Astronomy Now is on sale! Order direct from our store (free 1st class post & to UK addresses). The Astronomy Now iPad/iPhone editions are now available worldwide on the App Store.



Top Stories



Earthshine used to test life detection method
...By imagining the Earth as an exoplanet, scientists observing our planet's reflected light on the Moon with ESO's Very Large Telescope have demonstrated a way to detect life on other worlds...
  READ MORE

Solid buckyballs discovered in space
...Astronomers using NASA’s Spitzer Space Telescope have detected a particular type of molecule, given the nickname “buckyball”, in a solid form for the first time...
  READ MORE

Steamy water-world gets the Hubble treatment
...Hubble Space Telescope observations of a 7 Earth-mass planet find an unusual water-rich world swathed in a thick, steamy atmosphere...
  READ MORE








Get ready for a second blast
DR EMILY BALDWIN
ASTRONOMY NOW
Posted: 04 August 2010


Bookmark and Share

The first of two coronal mass ejections blasted out from the Sun at the weekend arrived in Earth's neighbourhood last night, lighting up the skies across Europe and North America. A second blast is expected to arrive tonight.

Almost the entire Earth-facing side of the Sun erupted on 1 August, blasting out two coronal mass ejections. The different colours in this extreme ultraviolet snapshot from the Solar Dynamics Observatory represents different gas temperatures ranging from 1 to 2 million degrees K. Image: NASA/SDO.

Last night's activity rated G2 on the NOAA Space Weather Scale for Geomagnetic Storms, translating as a moderate storm on a scale that tops out at grade five. The storm struck the Earth's magnetic field at 1740 UT and persisted for some 12 hours.

These images taken by the STEREO Ahead satellite from 3:47 to 15:47 UT, show the movement of the CME cloud, on the right of the discs, as it expands toward Earth. Image: NASA/STEREO.

A second bout of geomagnetic activity is forecast for this evening; according to spaceweather.com, there is a 35 percent chance of major geomagnetic storms. You can see some of the beautiful auroral displays from last night's storm in spaceweather.com's aurora gallery.

Read yesterday's report, Solar blast heads for Earth, here.

The Planets
From tiny Mercury to distant Neptune and Pluto, The Planets profiles each of the Solar System's members in depth, featuring the latest imagery from space missions. The tallest mountains, the deepest canyons, the strongest winds, raging atmospheric storms, terrain studded with craters and vast worlds of ice are just some of the sights you'll see on this 100-page tour of the planets.
 GET YOUR COPY

Hubble Reborn
Hubble Reborn takes the reader on a journey through the Universe with spectacular full-colour pictures of galaxies, nebulae, planets and stars as seen through Hubble's eyes, along the way telling the dramatic story of the space telescope, including interviews with key scientists and astronauts.
 GET YOUR COPY

3D Universe
Witness the most awesome sights of the Universe as they were meant to be seen in this 100-page extravaganza of planets, galaxies and star-scapes, all in 3D!
 GET YOUR COPY


HOME | NEWS ARCHIVE | MAGAZINE | SOLAR SYSTEM | SKY CHART | RESOURCES | STORE | SPACEFLIGHT NOW

© 2014 Pole Star Publications Ltd.