Perseverance Valley (Image NASA/JPL-Caltech/Cornell/Arizona State Univ.)

NASA’s Mars Rover Opportunity is working in an ancient valley on the edge of Endeavour Endeavour’s rim called “Perseverance Valley” examining rocks and driving around the area to carry out a survey of the place. According to plans, once these tasks are completed Opportunity will go down to the lower part of the valley but the maneuver will have to be even more cautious than expected due to a problem encountered in one of the wheels’ steering system.

The first stage used to launch the BulgariaSat 1 satellite after its hard landing (Image SpaceX)

SpaceX has set a new record for a private company by launching two rockets in just over 48 hours. On Friday, from Cape Canaveral the BulgariaSat 1 communications satellite was launched, while on Sunday, from the Vandenberg base in California 10 satellites of the Iridium NEXT constellation were launched. In both cases the first stage successfully landed.

The galaxy cluster MACS J2129-0741 and the galaxy MACS2129-1 (Image NASA, ESA, and S. Toft (University of Copenhagen), M. Postman (STScI), and the CLASH team)

An article published in the journal “Nature” describes a study of the galaxy MACS 2129-1. An international team of researchers led by Sune Toft of the Niels Bohr Institute (NBI), University of Copenhagen, Denmark used the Hubble Space Telescope and ESO’s Very Large Telescope (VLT) to gather information about MACS 2129-1. The result is that no new stars are being formed and this is really surprising because it’s very far away so we see it as it was at a time when the universe was at the highest rate of star production.

Spicules observed and simulated (Image NASA IRIS spectrograph/University of Oslo/SST)

An article published in the magazine “Science” describes a research that provides an explanation of the origins of solar spicules, intermittent plasma jets that propagate from the solar chromosphere to the base of the corona at very high speeds. A team of researchers created computer simulations and compared them with observations made by NASA’s IRIS space probe and the Swedish Solar Telescope in the Canary Islands that confirmed the models’ validity.

FIR 3 (HOPS 370) and FIR 4 (HOPS 108) (Image Credit: Osorio et al., NRAO/AUI/NSF)

An article published in the “Astrophysical Journal” describes a research on a star formation phenomenon in the Orion Molecular Cloud 2. A team of Astronomers led by Mayra Osorio of the Astrophysical Institute of Andalucia (IAA-CSIC) in Spain used the VLA radio telescope to find the evidence that a jet of material ejected by a young star might have triggered the formation of another younger protostar.