Chang’e-4 and Yutu-2 awake for 9th lunar day

My annual birthday-month fund-raising drive for Behind the Black is now on-going. Not only do your donations help pay my bills, they give me the freedom to speak honestly about science and culture, instead of being forced to write it as others demand.


Please consider donating by giving either a one-time contribution or a regular subscription, as outlined in the tip jar below.


Regular readers can support Behind The Black with a contribution via paypal:

Or with a subscription with regular donations from your Paypal or credit card account:

If Paypal doesn't work for you, you can support Behind The Black directly by sending your donation by check, payable to Robert Zimmerman, to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652


You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage. And if you buy the books through the ebookit links, I get a larger cut and I get it sooner.

China’s lander Chang’e-4 and rover Yutu-2 have been reactivated from sleep mode to begin their ninth lunar day on the far side of the Moon.

Their nominal mission had been three lunar days, so both spacecraft have now exceed that three times over.


One comment

  • Lee S

    It seems to me that these days, pretty much any mission that can actually arrive at its designated destination safely, can continue almost indefinitely.
    ( If only spirit and opportunity had solar cell wipers of some sort they would still be roving now…)
    This bodes well for the future…. It seems we have nailed how to keep machinery running in the harshest of environments…
    NASA seems to have mastered landing on Mars ( fingers crossed ), ESA and Roscosmos not so much… But the hardware from everyone (apart from Japan… But they are bloody good at workarounds!) Seems to be rock solid.
    The knowledge gained keeping all these missions running far beyond there expected lifespan is going to be very valuable to future manned missions…
    A big high five to the Chinese space program… It’s all good for our future as a multi planet species!!!

Leave a Reply

Your email address will not be published. Required fields are marked *