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It has been a difficult few months for US-Russian relations, with disputes between the two countries emerging both on land and in space. Despite the current bad feeling, NASA and Roscosmos have finalized a deal under which NASA astronauts and Russian cosmonauts will fly aboard each other’s spacecraft. The announcement of the new agreement came on Friday, July 15, the same day that Dmitry Rogozin was dismissed from his position as director general of Roscosmos. It’s not clear whether the space chief’s firing was linked to the new deal, but it does suggest that the two space agencies are finding ways to work together despite tensions arising from Russia’s invasion of Ukraine and the resulting economic sanctions. Anna Kikina at Russia’s Gagarin Cosmonaut Training Center on July 8, 2022. The Russian cosmonaut is scheduled to fly with SpaceX Crew Dragon as part of a recent seat swap arrangement. (Photo: Roscosmos, AP) For the agreement, US astronauts will board the Soyuz capsu

People often think that early embryos are fragile and need support. However, in the early stages of development, it has the power to feed the future placenta and command the uterus for nesting. Using the ‘blastoid’, an in vitro embryo model formed with stem cells, Nicolas Rivron’s Lab at IMBA demonstrated that the earliest molecular signals that induce placental development and prepare the uterus come from the embryo itself. The findings, now published in Cell Stem Cell, could contribute to a better understanding of human fertility. Who took care of whom in early life? The placenta and uterus nourish and protect the fetus. But the situation at an early stage of development, when the blastocyst is still afloat in the uterus, is so far unclear. Now, Nicolas Rivron’s group of researchers at IMBA (Institute of Molecular Biotechnology of the Austrian Academy of Sciences) discovered the basic principles of early development using blastoids. The blastoid is an in vitro model of the blas