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'In an unrecoverable state': NASA confirms MAVEN spacecraft is officially dead after loss of signal behind Mars
'In an unrecoverable state': NASA confirms MAVEN spacecraft is officially dead after loss of signal behind Mars NASA has confirmed its MAVEN spacecraft is officially dead after losing contact with the probe in December. An anomaly in the probe's rotation speed led to an unexpected loss of power, though the exact cause remains unknown. After 11 years studying Mars from above, NASA's MAVEN spacecraft is officially dead, the agency announced in a statement on Wednesday (June 3).
GNN-Enabled Robust Hybrid Beamforming with Score-Based CSI Generation and Denoising
arXiv:2511.06663v2 Announce Type: replace Abstract: Accurate Channel State Information (CSI) is critical for Hybrid Beamforming (HBF) tasks. However, obtaining high-resolution CSI remains challenging in practical wireless communication systems. To address this issue, we propose to utilize Graph Neural Networks (GNNs) and score-based generative models to enable robust HBF under imperfect CSI conditions.
NASA's MAVEN Mars orbiter is officially dead after months of radio silence
NASA's MAVEN Mars orbiter is officially dead after months of radio silence Au revoir, MAVEN, mon ami. NASA is saying goodbye to one of its most accomplished Mars orbiters. After months of repeated attempts to reestablish contact with the Mars Atmosphere and Volatile EvolutioN (MAVEN) satellite, NASA has declared the Red Planet probe dead.