Description: 暗能量是宇宙加速膨脹的一個可靠解釋。在過去的 60 億年裡，宇宙一直在作為可觀測的最大尺度進行膨脹。暗能量通常被描述為一種與引力相反的 "力"。通過對 Ia 型超新星、宇宙微波背景（CMB）輻射、星系團、引力透鏡和重子聲波振盪的間接觀測和測量，可以推斷出暗能量占宇宙總組分的超70%。儘管如此，關於暗能量的性質、是否存在不同類型的暗能量、暗能量是否會隨著宇宙時間的推移而變化以及暗能量的替代理論等課題，仍有許多研究和爭論。

Related Terms:

• 宇宙微波背景輻射（CMB）
• 暗物質
• Galaxy Cluster
• 引力透鏡
• Supernova
• Standard Candle

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

This is an automated transliteration of the simplified Chinese translation of this term

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".