21 Apr 2025 (23 hours away): Mercury at greatest elongation west

21 Apr 2025 (6 hours away): Moon at Last Quarter

21 Apr 2025 (20 hours away): Mercury at greatest elongation west

21 Apr 2025 (7 hours away): Moon at Last Quarter

21 Apr 2025 (21 hours away): Mercury at greatest elongation west

21 Apr 2025 (9 hours away): Moon at Last Quarter

21 Apr 2025 (22 hours away): Mercury at greatest elongation west

21 Apr 2025 (10 hours away): Moon at Last Quarter

SpaceX launches 10th batch of 'proliferated architecture' spy satellites for US government (video)

21 Apr 2025 (11 hours away): Moon at Last Quarter

When is the best time to see the Lyrid meteor shower 2025?

21 Apr 2025 (12 hours away): Moon at Last Quarter

21 Apr 2025 (13 hours away): Moon at Last Quarter

21 Apr 2025 (15 hours away): Moon at Last Quarter

Gamma-ray bursts reveal largest structure in the universe is bigger and closer to Earth than we knew: 'The jury is still out on what it all means.'