Articles

Emily Lakdawalla

Today is the day that New Horizons passes Mars' orbit (not that Mars is anywhere close to New Horizons right now).

A.J.S. Rayl

As autumn falls toward winter on the southern hemisphere of the Red Planet, the Mars Exploration Rovers are on the move again. Although the twin robot field geologists are roving as quickly as possible to their next major destinations, the pace is slowing down.

Emily Lakdawalla

Cassini planner Dave Seal gave me a newly updated list of times and dates for Cassini's ongoing tour of the Saturn system, so I went through and compared my table to his and made updates to flyby distances.

Emily Lakdawalla

A news update from the MESSENGER mission last Friday included a news item that piqued my interest: they reported that the MESSENGER science team website is now live.

Emily Lakdawalla

The audience was rapt as Project Manager Jun'ichiro Kawaguchi stood up to give an introduction to the Hayabusa spacecraft and described the saga of the mission to date.

Emily Lakdawalla

So after those two rover talks I skipped over to the other large room to listen to what the Cassini science teams had to say about Enceladus.

Emily Lakdawalla

This morning at the Lunar and Planetary Science Conference began with Titan, and then later in the morning I had to choose between skipping Titan and going over to rover sessions, or staying with Titan. I elected to stay with Titan.

Emily Lakdawalla

I just posted a very brief story about all of the press releases that have been whizzing around today about the possibility of liquid water on Enceladus.

Emily Lakdawalla

They held the usual pre-arrival press conference this morning for Mars Reconnaissance Orbiter. This press conference typically doesn't convey any information that people who have been paying attention don't already know.

A.J.S. Rayl

As early autumn descends on the southern hemisphere of the Red Planet, the Mars Exploration Rovers are on the move and picking up the pace as they rove toward their next major destinations.

Emily Lakdawalla

This one is

Emily Lakdawalla

Saturn is surrounded by a crowded family of rings and moons, and two of those moons -- Epimetheus and Janus -- orbit Saturn so close together that it seems as though their different orbital speeds should make them crash into each other.

A.J.S. Rayl

As the Mars Exploration Rover mission presses onward into its third Earth year -- and second Mars year -- the twin robot field geologists are moving to new destinations.

Emily Lakdawalla

It's in space, of course, and has a very, very long way to go to Pluto (nearly 50 billion kilometers). But it's finally more than 1 Astronomical Unit from the Sun.

Emily Lakdawalla

I received a lot of email over the weekend about New Horizons. Many of them were expressing concern about how little news there has been since launch. Have no fear.

Emily Lakdawalla

So the Stardust press conference is still going on on NASA TV, but I am now turning to the Internet to monitor the status of New Horizons' third attempted launch day.

Emily Lakdawalla

I am updating this as I take notes from the press conference.

John Spencer

We just got back from the real post-launch party, following two non-post-launch parties on the last two evenings. This was more like it.

Emily Lakdawalla

I was looking at that table of launch times for New Horizons and realized that the table included another valuable column of data that I hadn't noticed before: it tells you what year New Horizons will arrive, for each of the possible launch dates.

Emily Lakdawalla

Well, it was a nail-biting morning and too bad that New Horizons didn't go but these things happen pretty frequently.