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From the 2011 Fall Meeting of the American Geophysical Union (AGU): Voyager 1 at the edge of the solar system

Emily Lakdawalla • December 05, 2011

A report on a press briefing about Voyager 1 at the Fall 2011 American Geophyisical Union meeting. The spacecraft has entered a new region between our solar system and interstellar space, which scientists are calling the stagnation region.

The scale of our solar system

Emily Lakdawalla • May 02, 2011

Space.com has taken advantage of the infinitely scrollable nature of Web pages to produce a really cool infographic on the scales of orbital distances in the solar system.

Spotting Jupiter's Moons...with a Solar Telescope!?

Emily Lakdawalla • April 06, 2011

I was astounded to learn this morning that SOHO can not only see Jupiter, it can actually resolve Jupiter's moons (at least its two outer ones) as points of light separate from their planet!

Mars conjunction today: Cool SOHO/SDO video

Emily Lakdawalla • February 04, 2011

Today Mars made its closest approach to the Sun -- as seen from Earth, that is. Why is this important?

Solar eclipses from space: Hinode and SDO

Emily Lakdawalla • January 06, 2011

Two spacecraft that keep their ever-watchful eyes on the Sun -- NASA's Solar Dynamics Observatory (SDO) and JAXA's Hinode -- were doing their thing, when something large wandered past: the Moon.

A Martian Moment in Time, revisited

Emily Lakdawalla • May 12, 2010

A good start to my day today: The New York Times' Lens Blog featured the "Martian Moment in Time" photo that Opportunity took last week in a really nice writeup. I'm so grateful, and still a little surprised, that the folks on the Mars Exploration Rover mission took this idea and ran with it!

What it looks like when a CME explodes toward us

Emily Lakdawalla • April 14, 2010

The animation I posted yesterday, of a huge coronal mass ejection exploding away from the Sun, caused several people to ask if it could do Earth any harm.

Stellar explosion

Emily Lakdawalla • April 13, 2010

The Sun just spat out a huge coronal mass ejection, an event made visible by the watchful cameras on SOHO.

Strong geomagnetic storm today

Emily Lakdawalla • April 05, 2010

This morning I received a bulletin warning of a "strong" geomagnetic storm that began just over an hour ago.

Space weather affects everyday life on Earth

Emily Lakdawalla • April 04, 2007

According to a press release issued this morning by the National Oceanic and Atmospheric Administration, the enormous solar flare that erupted on December 5 and 6 last year was accompanied by an intense radio burst that caused large numbers of Global Positioning System recivers to stop tracking the signal from the orbiting GPS satellites.

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